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 teacher of Nick was a lot smarter than Robert's teacher, because _ teacher has several degrees. (A) Nick (B) Robert
Example Output: A

Example Input: The librarian wanted to hide the book on the shelf but the _ was too large. (A) book (B) shelf
Example Output: A

Example Input: Jerry bought his supplements at the grocery store instead of at the gym because they were cheaper at the _ . (A) gym (B) grocery store
Example Output:
B