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').

Ex Input:
Coccidiosis usually occurs from ____ weeks of age.\Question: Choose the right answer from options given a) zero b) no c) three d) eight

Ex Output:
c


Ex Input:
Amelia Island is the only territory in American history to serve under ____ flags.\Question: Choose the right answer from options given a) eight b) no c) six d) five

Ex Output:
a


Ex Input:
Bobcats are predators with ____ large canine fangs that pierce deep to hold prey.\Question: Choose the right answer from options given a) zero b) one c) four d) two

Ex Output:

c