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: Humans normally produce only ____ sets of teeth.\Question: Choose the right answer from options given a) nine b) eight c) two d) three

Answer: c


Question: Routers are basically systems, which connect ____ networks together.\Question: Choose the right answer from options given a) three b) two c) nine d) six

Answer: b


Question: Fuzzy logic is an attempt to combine the ____ techniques.\Question: Choose the right answer from options given a) ten b) three c) eight d) two

Answer:
d