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]: Cyclic neutropenia tends to occur every three weeks and last ____ to six days at a time.\Question: Choose the right answer from options given a) six b) four c) five d) three
[A]: d


[Q]: Righteousness always points in ____ directions.\Question: Choose the right answer from options given a) six b) two c) one d) four
[A]: b


[Q]: Most insects have ____ wings, but flies have only two.\Question: Choose the right answer from options given a) two b) five c) three d) four
[A]:
d