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: Decompression illness is a continuum from ____ symptoms or signs to severe multisystem involvement.\Question: Choose the right answer from options given a) nine b) three c) no d) one

A: c
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Q: Cats have ____ lives.\Question: Choose the right answer from options given a) five b) one c) two d) nine

A: d
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Q: True crabs have ____ pairs of legs including the claws.\Question: Choose the right answer from options given a) two b) five c) four d) zero

A:
b
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