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]: 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]: Some taxonomists classify only ____ species though.\Question: Choose the right answer from options given a) one b) six c) two d) three
[A]: c


[Q]: Tadpoles take ____ to four months to complete their development.\Question: Choose the right answer from options given a) three b) zero c) nine d) ten
[A]:
a