Review the alien commander's top-secret report on Earth's furry leaders (cats). Choose ALL the grammatically correct observations that apply.
The correct answers are Every cat demands food at precisely 6:00 AM. and All cats demand food at precisely 6:00 AM.
Every takes a singular noun and a singular verb (Every cat demands).
All takes a plural noun and a plural verb (All cats demand).
The other options incorrectly mix singular and plural nouns or verbs!