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:
Some skulls show the marks of up to ____ bullets.\Question: Choose the right answer from options given a) five b) three c) eight d) six

Ex Output:
d


Ex Input:
Twin souls are the last ____ souls to individualize.\Question: Choose the right answer from options given a) two b) ten c) zero d) six

Ex Output:
a


Ex Input:
Plants stay in bloom for up to ____ weeks or more.\Question: Choose the right answer from options given a) three b) zero c) eight d) four

Ex Output:

a