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: Cats can harbor a heartworm infection at any age from ____ months to seventeen years.\Question: Choose the right answer from options given a) one b) six c) nine d) three
Example Output: c

Example Input: Most women notice their breasts become fuller and firmer within the first six to ____ weeks.\Question: Choose the right answer from options given a) four b) eight c) zero d) ten
Example Output: b

Example Input: Humans have more than ____ senses.\Question: Choose the right answer from options given a) nine b) six c) one d) five
Example Output:
d