The answer is Its.
Theirs/their pertains to more than one person belonging to items.
It's is a contraction form of "it is".
August didn't because he/she maybe didn't have time to take the dog to the vet or couldn't afford.
Values I think is the answer
The correct answers are:
Telling a nonfiction story and using a first-person perspective.
Memoirs are life accounts of a person that is written by another person from his personal knowledge or from sources. In writing memoirs, real life experiences are used which means it is not a fiction.