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: Some infected people have ____ symptoms at all.\Question: Choose the right answer from options given a) four b) eight c) no d) five

A: c
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Q: Coccidiosis usually occurs from ____ weeks of age.\Question: Choose the right answer from options given a) zero b) no c) three d) eight

A: c
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Q: Rodents have ____ toes on their front feet and five on the hind feet.\Question: Choose the right answer from options given a) six b) four c) three d) nine

A:
b
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