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: Nymphs feed and mature through ____ instars in about six to eight weeks.\Question: Choose the right answer from options given a) four b) eight c) five d) no

A: c
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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: Plant shrubs three to four feet apart in rows ____ feet apart.\Question: Choose the right answer from options given a) three b) one c) six d) no

A:
c
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