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]: Government buildings fly flags of the ____ nations.\Question: Choose the right answer from options given a) ten b) no c) seven d) two
[A]: d


[Q]: Most spiders have eight eyes and ____ legs.\Question: Choose the right answer from options given a) six b) nine c) eight d) four
[A]:
c