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:
Rabbits reach sexual maturity between three and ____ months of age.\Question: Choose the right answer from options given a) three b) seven c) six d) zero

Ex Output:
c


Ex Input:
Prairie voles look like rodents with small rounded bodies, ____ short legs and a short tail.\Question: Choose the right answer from options given a) two b) nine c) four d) zero

Ex Output:
c


Ex Input:
Milk chocolate contains milk in addition to the ____ ingredients above.\Question: Choose the right answer from options given a) three b) four c) zero d) nine

Ex Output:

b