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:
Sexual reproduction involves ____ individual organisms.\Question: Choose the right answer from options given a) six b) no c) two d) nine

Ex Output:
c


Ex Input:
Most Trusts have ____ or more Trustees.\Question: Choose the right answer from options given a) zero b) nine c) ten d) two

Ex Output:
d


Ex Input:
Eye donation can give precious sight to ____ individuals.\Question: Choose the right answer from options given a) ten b) four c) eight d) two

Ex Output:

d