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').

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

Output: b

Input: Consider Input: Pandas reach adulthood at about ____ years of age.\Question: Choose the right answer from options given a) eight b) seven c) five d) six

Output: c

Input: Consider Input: Acrylics are water-based and dry in two to ____ hours.\Question: Choose the right answer from options given a) two b) zero c) nine d) four
Output: d