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').
--------
Question: Digital bandwidth enables signal to be condensed as a five to ____ ratio.\Question: Choose the right answer from options given a) one b) nine c) seven d) six

Answer: a


Question: Sexual maturity is reached at about ____ years of age.\Question: Choose the right answer from options given a) five b) ten c) no d) two

Answer: d


Question: Some physicians make the mistake of prescribing a medication for only three or ____ weeks.\Question: Choose the right answer from options given a) no b) four c) two d) one

Answer:
b