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: Mammals have only ____ sets of teeth.\Question: Choose the right answer from options given a) six b) five c) seven d) two

A: d
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Q: Vaccination typically occurs at ____ to eight weeks of age in kittens.\Question: Choose the right answer from options given a) three b) nine c) six d) no

A: c
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Q: Notebooks are laptop computers that weigh between five and ____ pounds.\Question: Choose the right answer from options given a) ten b) seven c) nine d) one

A:
b
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