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: Aaron went to pick up Michael, who needed a ride to the airport, and _ was very grateful. (A) Aaron (B) Michael
Example Output: B

Example Input: Kyle was wearing a sweatshirt while Aaron was in a tank top because _ thought the temperature outside was far too cold. (A) Kyle (B) Aaron
Example Output: A

Example Input: Christine owned a car that was much more expensive than Carrie did because _ was very poor. (A) Christine (B) Carrie
Example Output:
B