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: James found out the water floating on the pot after he watered it with a can. He should have known the _ is too small. (A) water (B) pot
Example Output: B

Example Input: Rebecca showed Jennifer how to heal a fever by herself.  _ sure was knowledgeable. (A) Rebecca (B) Jennifer
Example Output: A

Example Input: The worker moved the cardboard from the truck to the storeroom until the _ was empty. (A) truck (B) storeroom
Example Output:
A