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: Some male fish return after just ____ years.\Question: Choose the right answer from options given a) no b) two c) one d) six

A: b
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Q: Bees possess ____ eyes.\Question: Choose the right answer from options given a) three b) five c) one d) ten

A: b
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Q: Millions die before they are ____ years old because they get too little food, or the wrong kind.\Question: Choose the right answer from options given a) five b) seven c) ten d) no

A:
a
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