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: Onion thrips experience ____ instars.\Question: Choose the right answer from options given a) three b) six c) eight d) four

A: d
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Q: Parliaments can last five years, often last ____ and a bit.\Question: Choose the right answer from options given a) four b) three c) five d) two

A: a
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Q: Most juveniles remain in their natal river from ____ to six years before migrating to the ocean.\Question: Choose the right answer from options given a) ten b) eight c) one d) zero

A:
c
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