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: Derrick filled the bucket with water so that Joel could clean the car, because _ didn't want to do it. (A) Derrick (B) Joel
Example Output: A

Example Input: The cat liked to play with the laser pen, but not with the cat wand, because the _ is more entertaining. (A) laser pen (B) cat wand
Example Output: A

Example Input: The professor preferred to demonstrate the problem on a chalkboard rather than a projector, because the _ was less effective. (A) projector (B) chalkboard
Example Output:
A