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: Some families have two daddies or ____ mommies.\Question: Choose the right answer from options given a) nine b) seven c) zero d) two

Answer: d


Question: Pandas reach adulthood at about ____ years of age.\Question: Choose the right answer from options given a) eight b) seven c) five d) six

Answer: c


Question: Ovulation failure accounts for ____ in five cases, as do blocked or diseased fallopian tubes.\Question: Choose the right answer from options given a) one b) zero c) three d) nine

Answer:
a