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:
Bilingual teachers are more than people who speak ____ languages.\Question: Choose the right answer from options given a) five b) two c) three d) ten

Ex Output:
b


Ex Input:
Fawns weigh about ____ to nine pounds at birth.\Question: Choose the right answer from options given a) five b) ten c) nine d) six

Ex Output:
d


Ex Input:
Frogs require from four to ____ years to reach maturity.\Question: Choose the right answer from options given a) nine b) eight c) five d) zero

Ex Output:

b