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: Obesity is, in general, the result of personal choices and poses ____ risk of communication.\Question: Choose the right answer from options given a) four b) six c) zero d) seven

A: c
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Q: Diatoms look like ____ shells that fit together.\Question: Choose the right answer from options given a) zero b) one c) two d) seven

A: c
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Q: Tree squirrels have litters of three or ____ young.\Question: Choose the right answer from options given a) nine b) five c) eight d) four

A:
d
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