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:
Chacoan peccaries are the largest of the ____ peccary species.\Question: Choose the right answer from options given a) eight b) three c) ten d) no

Ex Output:
b


Ex Input:
Interdigital glands are present on all ____ feet, and are slightly larger on the front feet.\Question: Choose the right answer from options given a) three b) five c) four d) eight

Ex Output:
c


Ex Input:
Most chimpanzees spend about ____ hours a day feeding.\Question: Choose the right answer from options given a) six b) eight c) no d) seven

Ex Output:

d