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: Embryos develop and hatch in about four weeks, then spend four to ____ months in the tadpole stage.\Question: Choose the right answer from options given a) five b) nine c) eight d) two

Answer: a


Question: Ants have ____ noses.\Question: Choose the right answer from options given a) zero b) eight c) five d) three

Answer: c


Question: Men produce ____ types of sperm in equal amounts.\Question: Choose the right answer from options given a) two b) six c) nine d) ten

Answer:
a