Select correct answer.

My grandfather said: "I got married in 1990 and had children in 1991."

My grandfather said that he got married in 1990 and had children in 1991.

My grandfather said that he got married in 1990 and had children in 1991.

The time 1990 is specific in the past, so the tense does not change.

My grandfather said that he got married in 1990 and had children in 1991.

The time 1991 is a specific time in the past, so the tense in does not change in the indirect speech sentence.