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:
Food chains consist of ____ trophic levels.\Question: Choose the right answer from options given a) ten b) three c) one d) four

Ex Output:
d


Ex Input:
Popular racism seems most prevalent in Italy which saw ____ deaths at the hands of racists.\Question: Choose the right answer from options given a) five b) two c) one d) four

Ex Output:
d


Ex Input:
Earrings have latching backs with ____ different colored pearls.\Question: Choose the right answer from options given a) five b) zero c) two d) four

Ex Output:

c