In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

Example Input: Emily hated reading and writing in school but not Christine because _ had great ability. (A) Emily (B) Christine
Example Output: B

Example Input: The bits of sand in clam chowder bothered Justin, but it didn't bother Brian because _ didn't understand that the sand means that it's fresh. (A) Justin (B) Brian
Example Output: A

Example Input: Kevin was a much worse baseball player than Christopher because _ had control over the ball. (A) Kevin (B) Christopher
Example Output:
B