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: All spider mites have ____ legs and a lack of a separate head.\Question: Choose the right answer from options given a) eight b) four c) ten d) one

Answer: a


Question: Some European countries require ____ years of education.\Question: Choose the right answer from options given a) no b) nine c) six d) three

Answer: d


Question: Least squares means of boar taint compounds in ____ breeds of entire male pigs.\Question: Choose the right answer from options given a) two b) nine c) four d) zero

Answer:
c