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: The medical exam for the broken arm was longer than the exam on the heart because the _ was a serious problem. (A) heart (B) arm
Example Output: B

Example Input: Jim wanted to cook crawfish in the pot, but they would not fit, the _ was too small. (A) pot (B) crawfish
Example Output: A

Example Input: Amy wanted to add false eyelashes to her real eyelashes, because the _ were old. (A) real eyelashes (B) false eyelashes
Example Output:
A