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: Decapod crustaceans have ____ pairs of limbs.\Question: Choose the right answer from options given a) five b) four c) six d) seven

Output: a


Input: Consider Input: Calves remain hidden for much of the time, and are weaned by ____ months of age.\Question: Choose the right answer from options given a) six b) three c) eight d) one

Output: b


Input: Consider Input: Boys begin learning to shoot at age ____ or eight.\Question: Choose the right answer from options given a) one b) seven c) three d) eight


Output: b