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]: Mothers usually give birth to one, two, or ____ babies at a time.\Question: Choose the right answer from options given a) three b) zero c) five d) ten
[A]: a


[Q]: Children of alcoholics are ____ times more likely than other people to become alcoholics themselves.\Question: Choose the right answer from options given a) zero b) four c) nine d) two
[A]: b


[Q]: Calves survive on their mother's fat-rich milk for six to ____ months.\Question: Choose the right answer from options given a) one b) nine c) no d) eight
[A]:
d