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".

[Q]: Justin showed Joseph his old high school track and field records.  _ was athletic. (A) Justin (B) Joseph
[A]: A


[Q]: Sarah took their bird to Rachel at the vet office, but _ thought their bird was acting normally. (A) Sarah (B) Rachel
[A]: B


[Q]: Derrick practices good organization at the office Brian is the manager of, _ is always looking for a higher position. (A) Derrick (B) Brian
[A]:
A