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:
Most families have between ____ and eight children.\Question: Choose the right answer from options given a) four b) one c) five d) three

Ex Output:
c


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:
Crows begin to fly sufficiently to be released at ____ weeks or so.\Question: Choose the right answer from options given a) seven b) eight c) six d) four

Ex Output:

b