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: Ants have ____ distinct body parts.\Question: Choose the right answer from options given a) nine b) zero c) no d) three

A: d
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Q: Bloody diarrhea lasts for two to ____ days.\Question: Choose the right answer from options given a) nine b) five c) three d) no

A: b
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Q: Electrons move around the nucleus in up to ____ round paths , called shells.\Question: Choose the right answer from options given a) three b) seven c) nine d) eight

A:
b
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