Which sentence incorrectly uses an apostrophe to show possession?

Which sentence incorrectly uses an apostrophe to show possession? A. The tree fell on Bobby's house during the massive thunderstorm. B. The candy store wasn't open, so Jane was sad that she could not spend Daddy's money. C. Brendas' best friend, Tracy, was not going to be able to come to her birthday party.

Answer: C. Brendas' best friend, Tracy, was not going to be able to come to her birthday party.

Answer: C. Explanation: The word Brendas' suggests multiple people named Brenda have the best friend Tracy. The correct apostrophe in this context would be Brenda's.