Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Q: Hurricanes weaken rapidly when passing over land surfaces for ____ reasons.\Question: Choose the right answer from options given a) two b) three c) nine d) zero

A: b
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Q: Carbon can bond to a maximum of ____ atoms.\Question: Choose the right answer from options given a) six b) ten c) five d) four

A: d
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Q: Older adults are ____ times more likely than younger adults to report problems with constipation.\Question: Choose the right answer from options given a) four b) six c) five d) nine

A:
c
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