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').
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Question: Conflict diamonds account for less than ____ per cent of world trade in rough diamonds.\Question: Choose the right answer from options given a) two b) four c) one d) ten

Answer: b


Question: Ales actively ferment with yeast for two to ____ days.\Question: Choose the right answer from options given a) five b) nine c) three d) six

Answer: c


Question: Infertility affects up to ____ in every five U.S. couples.\Question: Choose the right answer from options given a) one b) ten c) six d) four

Answer:
a