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]: Rock cavies become sexually mature when they are about one to ____ months old.\Question: Choose the right answer from options given a) one b) four c) three d) seven
[A]: c


[Q]: Government is divided into ____ basic functions.\Question: Choose the right answer from options given a) three b) no c) two d) four
[A]: c


[Q]: Clothes moths go through ____ distinct lifecycle periods with significant change at each stage.\Question: Choose the right answer from options given a) four b) six c) three d) one
[A]:
a