The correct article to complete the sentence is "an." This is because "an" is the indefinite article used before a word that starts with a vowel sound. In this case, the word "elephant" starts with a vowel sound, "e", so "an" should be used.
The article "a" is not correct because it is used before words that start with a consonant sound.
The article "the" is not correct because it is used to indicate a specific noun that is being referred to.
No article is not correct because it is not used before a singular count noun.
Determinative
An important role in English grammar is played by determiners – words or phrases that precede a noun or noun phrase and serve to express its reference in the context. Determinative is a lexical category whereas determiner is a grammatical or syntactic function. In traditional grammar, determinatives form a subclass of adjectives. In the Cambridge Grammar of English Language, determinatives are considered to be a distinct primary lexical category (part of speech). Just as the determiner function is not always realised by determinatives, so many of determinatives can have other functions that that of determiner. The determinative three is determiner is three books, but modifier in these three books. Similarly, determinative much is determiner in much happiness but a modifier in much happier.
Article
Articles in the English language are the definite article the and the indefinite articles a and an. Use of the definite article implies that the speaker assumes the listener knows the identity of the noun's referent (because it is obvious, because it is common knowledge, or because it was mentioned in the same sentence or an earlier sentence). Use of an indefinite article implies that the speaker assumes the listener does not have to be told the identity of the referent. In some noun phrases, no article is used.
Zero Article
The term zero article refers to noun phrases that contain no articles, definite or indefinite. English, like many other languages, does not require an article in plural noun phrases with a generic reference, a reference to a general class of things. English also uses no article before a mass noun or a plural noun if the reference is indefinite, a thing that is not specifically identifiable in context.
For example:
- Generic mass noun: Happiness is contagious.
- Generic plural noun: Cars have accelerators.
- Generic plural noun: They want equal rights.
- Indefinite mass noun: I drink coffee.
- Indefinite plural noun: I saw cars.
In English, the zero article rather than the indefinite article is often used with plurals and mass nouns (although the word "some" can function like an indefinite plural article).
The definite article is sometimes omitted before some words for specific institutions, such as prison, school, and (in standard non-American dialects) hospital.
- She is in hospice.
- The criminal went to prison.
- I'm going to school.
The article may also be omitted between a preposition and the word bed when describing activities typically associated with beds.
- He is lying in bed.
- They went to bed.
Where a particular location is meant, or when describing activities that are not typical, the definite article is used.
- She was dismissed from the hospital.
- The plumber went to the prison to fix the pipes.
- We were jumping on the bed.
The zero article is also used in instructions and manuals. In such cases, the references in the text are all definite, and thus no distinction between definite and indefinite has to be made.
- Grasp drumstick.
- Place knife between thigh and body; cut through skin to joint. Separate thigh and drumstick at joint.
The zero article is used with meals.
- I have just finished dinner.
- Breakfast is the most important meal of the day.
The zero article is used when describing calendar years.
- I was born in 1978.
The zero article is used before titles
- The Board appointed him Captain.
A2 / Elementary / Pre-intermediate
A CEFR A2 level English language user is considered to be at an elementary level. At this level, an individual is expected to have a basic understanding of the English language and be able to use simple phrases and sentences to communicate in everyday situations. They should be able to understand and use basic grammar and vocabulary, and be able to understand short, simple texts.
At A2 level, They can understand sentences and frequently used expressions related to areas of most immediate relevance (e.g. very basic personal and family information, shopping, local geography, employment). They can communicate in simple and routine tasks requiring a simple and direct exchange of information on familiar and routine matters. They can describe in simple terms aspects of their background, immediate environment and matters in areas of immediate need. They can also interact with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain for either party.
Difficulty: Easy
Easy difficulty. Difficulty levels represent author's opinion about how hard a question or challenge is.