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:
Today there are ____ major breweries in Mexico that produce a spectrum of tasty beverages.\Question: Choose the right answer from options given a) nine b) six c) zero d) eight

Ex Output:
b


Ex Input:
Calves can swim ____ days after they are born.\Question: Choose the right answer from options given a) ten b) two c) zero d) one

Ex Output:
b


Ex Input:
Most organ systems are operational in the fetus by ____ to six months.\Question: Choose the right answer from options given a) nine b) no c) four d) seven

Ex Output:

c