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').

Example Input: Most people have ____ kidneys.\Question: Choose the right answer from options given a) two b) five c) seven d) six
Example Output: a

Example Input: Bucks grow antlers each year that reach ____ to six feet in spread.\Question: Choose the right answer from options given a) seven b) one c) three d) five
Example Output: d

Example Input: Scar tissue turns white and softens in four to ____ months.\Question: Choose the right answer from options given a) two b) three c) five d) one
Example Output:
c