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]: Circumcisions usually heal within ____ to two weeks.\Question: Choose the right answer from options given a) one b) five c) eight d) nine
[A]: a


[Q]: Bytes are sets of ____ bits.\Question: Choose the right answer from options given a) four b) eight c) five d) ten
[A]: b


[Q]: Humans normally produce only ____ sets of teeth.\Question: Choose the right answer from options given a) nine b) eight c) two d) three
[A]:
c