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: Hamsters can live to be three to ____ years old.\Question: Choose the right answer from options given a) four b) two c) three d) nine
Example Output: a

Example Input: Honeybees have ____ jobs.\Question: Choose the right answer from options given a) ten b) one c) three d) two
Example Output: d

Example Input: Hospice care is designed to be of benefit during the last ____ months of life.\Question: Choose the right answer from options given a) eight b) ten c) six d) five
Example Output:
c