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: Vaporization can occur in temperatures as low as ____ degrees.\Question: Choose the right answer from options given a) one b) zero c) eight d) two

A: b
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Q: Statistics show that within ____ years of divorce, many people marry a second time.\Question: Choose the right answer from options given a) four b) nine c) six d) three

A: d
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Q: Sexual maturity comes early with ewe lambs capable of breeding at six to ____ months.\Question: Choose the right answer from options given a) six b) seven c) zero d) no

A:
b
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