Question

Which sentence incorrectly uses an apostrophe to show possession?
A. Are you going to Mandy's party on Thursday?
B. The man who sang during half-time is Amys' dad.
C. The servant was the princess's best friend.

Answer 1

B. The man who sang during half-time is Amys' dad.

It should be "The man who sang during half-time is Amy's dad."

Answer 2

B. The man who sang during half-time is Amys' dad.
Amy is herself, meaning as it is going to be "Amy's"