Answer: The message of The Boy in the Striped Pajamas is that we are all more alike than we are different. The innocent friendship of the Jewish boy Shmuel and the Nazi's son Bruno, set against the horrific backdrop of the Holocaust, highlights the fact that divisions between people are arbitrary.
Explanation: I believe this is correct, hope this helps!
Pile is the subject which is singular so the answer is A (is)
Tooth
Singular Possessive: Tooth's
Plural Possessive: Teeths'
Puppy
Singular Possessive: Puppy's
Plural Possessive: Puppys'