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: Illiteracy is ____ percent higher among women than men.\Question: Choose the right answer from options given a) seven b) six c) zero d) five

A: a
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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: Most babies move into a normal, head-down position a by ____ weeks before birth.\Question: Choose the right answer from options given a) three b) four c) nine d) two

A:
a
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