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: Butterflies have ____ stages in their life cycle.\Question: Choose the right answer from options given a) two b) four c) no d) eight

A: b
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Q: Grasshoppers are ____ inches long and can knock a man off a bicycle.\Question: Choose the right answer from options given a) six b) ten c) four d) eight

A: a
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Q: Octopuses have ____ shells but the most advanced mollusc.\Question: Choose the right answer from options given a) four b) three c) five d) no

A:
d
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