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".

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

[EX Q]: Logan owned a store that sold a hamster to Dennis, and it was the first hamster _ owned. (A) Logan (B) Dennis
[EX A]: B

[EX Q]: Aaron likes to keep their house spotless but Robert doesn't because _ is a neat person. (A) Aaron (B) Robert
[EX A]:
A