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]: Rachel wanted to get the tapestry but instead had to get the vase because the _ was too expensive. (A) tapestry (B) vase
[EX A]: A

[EX Q]: Derrick always lost the key to his car when at home unlike Hunter, due to _ being forgetful. (A) Derrick (B) Hunter
[EX A]:
A