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]: Moles breed in late winter or spring and have a gestation period of ____ to six weeks.\Question: Choose the right answer from options given a) nine b) four c) six d) five
[A]: b


[Q]: Human feet bear average five to ____ hundreds tons of weight everyday.\Question: Choose the right answer from options given a) six b) eight c) five d) nine
[A]: a


[Q]: Most bony fishes reach sexual maturity between ____ and five years.\Question: Choose the right answer from options given a) one b) seven c) six d) zero
[A]:
a