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".
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Question: Katrina trained Tanya to do aerobic exercise because _ was a trainer in great shape. (A) Katrina (B) Tanya

Answer: A

Question: Mark preferred to study home instead of in the university, because the _ environment is loud. (A) home (B) university

Answer: B

Question: Aaron used nails instead of staples to repair the chair because he thought the _ would be more secure. (A) nails (B) staples

Answer:
A