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').

[EX Q]: Most people recover in one to ____ months.\Question: Choose the right answer from options given a) no b) three c) seven d) eight
[EX A]: b

[EX Q]: Some male fish return after just ____ years.\Question: Choose the right answer from options given a) no b) two c) one d) six
[EX A]: b

[EX Q]: Invidual variables consist of one lowercase letter, followed by ____ or more letters or digits.\Question: Choose the right answer from options given a) four b) ten c) two d) zero
[EX A]:
d