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]: Roundworms are fairly large worms that can grow to be ____ or five inches long.\Question: Choose the right answer from options given a) no b) nine c) four d) zero
[A]: c


[Q]: Metabolism have ____ stages-catabolism and anabolism.\Question: Choose the right answer from options given a) nine b) two c) five d) three
[A]: b


[Q]: Burmese pythons reach sexual maturity in four to ____ years.\Question: Choose the right answer from options given a) zero b) ten c) five d) four
[A]:
c