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: Birds reach sexual maturity in three to ____ years.\Question: Choose the right answer from options given a) seven b) two c) five d) six

A: c
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Q: Roundworms are fairly large worms that can grow to be ____ or five inches long.\Question: Choose the right answer from options given a) no b) nine c) four d) zero

A: c
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Q: Most healthy babies move about ten times in ____ hours.\Question: Choose the right answer from options given a) two b) four c) ten d) one

A:
b
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