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:
Mares normally give birth to their first foal when they are between three and ____ years of.\Question: Choose the right answer from options given a) ten b) no c) six d) four

Ex Output:
c


Ex Input:
Indian reservations are part of five of the nation's ____ poorest counties.\Question: Choose the right answer from options given a) seven b) nine c) ten d) two

Ex Output:
c


Ex Input:
Cockroaches have ____ hairy legs.\Question: Choose the right answer from options given a) six b) zero c) ten d) no

Ex Output:

a