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: The dieter switched his lunch snack from an apple to a pineapple, as the _ lacked an important vitamin needed in his diet. (A) apple (B) pineapple

A: A
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Q: Mary laughed at Rebecca when she accidentally slipped and did the splits, so the man looked at _ with pitty. (A) Mary (B) Rebecca

A: B
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Q: The smoke of the incense filled the whole room and started to choke people because the _ is too much. (A) smoke (B) room

A:
A
****