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]: Matthew poked Kyle on various parts of his body for pain, because _ is a doctor. (A) Matthew (B) Kyle
[A]: A


[Q]: Ian told Donald that he was going to try eating amaranth in order to improve _ diet. (A) Ian (B) Donald
[A]: A


[Q]: Samantha gave Mary vocal lessons for the upcoming school concert because _ had untapped vocals. (A) Samantha (B) Mary
[A]:
B