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".

Let me give you an example: Katrina gave Christine a stuffed animal for their birthday, but _ already had this one. (A) Katrina (B) Christine
The answer to this example can be: B
Here is why: Since the blank is someone who received the gift and already had a stuffed animal, the answer must be "Christine".

OK. solve this:
Jack loved math and disliked social sciences, so when deciding to take sociology or math that semester, the counselor deleted the _ because Jack was resistant to it. (A) math (B) sociology
Answer:
B