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

Example Input: Tardigrades are microscopic, water-dwelling, segmented animals with ____ legs.\Question: Choose the right answer from options given a) eight b) nine c) one d) seven
Example Output: a

Example Input: Eyes occupy the most prominent place among the ____ sensory organs of our body.\Question: Choose the right answer from options given a) no b) five c) eight d) three
Example Output:
b