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: Centrifugal pumps can usually handle up to about ____ percent by volume of air.\Question: Choose the right answer from options given a) one b) five c) eight d) seven

A: b
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Q: Toenails are similar , except that they grow ____ times slower and are on the toes .\Question: Choose the right answer from options given a) two b) eight c) six d) four

A: d
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Q: Korean names are usually ____ syllables long, with the surname preceding given names.\Question: Choose the right answer from options given a) two b) eight c) three d) nine

A:
c
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