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: Maria learned how to make pineapple upside down cake from Carrie, but _ could never quite get hers to taste the same. (A) Maria (B) Carrie
Example Output: A

Example Input: Sarah talked in school much less than Rebecca did although _ was much more shy. (A) Sarah (B) Rebecca
Example Output: B

Example Input: Sarah was sick today with the flu while Rebecca was not, so _ went to school that day. (A) Sarah (B) Rebecca
Example Output:
B