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]: Samuel recommended a protein rich diet for Lawrence to recover stamina because _ is his doctor. (A) Samuel (B) Lawrence
[EX A]: A

[EX Q]: Adam is getting full immunity during the trial but not Robert because _ is keeping quiet.. (A) Adam (B) Robert
[EX A]: B

[EX Q]: Elena is a lot better using a map than Sarah because _ has had training in the military. (A) Elena (B) Sarah
[EX A]:
A