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').

Q: Today there are ____ basic classifications of sausage.\Question: Choose the right answer from options given a) five b) four c) six d) one

A: a
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Q: Most linguists organize the African languages into ____ major language families.\Question: Choose the right answer from options given a) three b) four c) eight d) no

A: b
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Q: Polymers have ____ different kinds of phase transitions.\Question: Choose the right answer from options given a) six b) seven c) four d) ten

A:
d
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