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

A: B
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Q: The man wrote letters in the Army, but didn't send packages. That's because it is expensive to send _ . (A) letters (B) packages

A: B
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Q: Samuel took more vitamins than Robert did because _ had more trouble with their mind. (A) Samuel (B) Robert

A:
A
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