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: Sexual reproduction involves ____ parents, one male and one female.\Question: Choose the right answer from options given a) zero b) two c) nine d) four

Answer: b


Question: Sexual maturity is reached at about ____ years of age.\Question: Choose the right answer from options given a) five b) ten c) no d) two

Answer: d


Question: Weasels are the smallest of the ____ mustelids, with a thin, muscular body and a small head.\Question: Choose the right answer from options given a) three b) eight c) four d) no

Answer:
a