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:
Women live an average of five to ____ years longer then men.\Question: Choose the right answer from options given a) one b) five c) ten d) seven

Ex Output:
d


Ex Input:
China has about ____ in four of all smokers in the world.\Question: Choose the right answer from options given a) one b) seven c) ten d) six

Ex Output:
a


Ex Input:
Christian baptism is administered in ____ modes.\Question: Choose the right answer from options given a) three b) ten c) no d) zero

Ex Output:

a