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:
Obesity is, in general, the result of personal choices and poses ____ risk of communication.\Question: Choose the right answer from options given a) four b) six c) zero d) seven

Ex Output:
c


Ex Input:
Pelicans use ____ different ways to feed.\Question: Choose the right answer from options given a) no b) nine c) one d) two

Ex Output:
d


Ex Input:
Wet rice produces ____ crops a years instead of one.\Question: Choose the right answer from options given a) four b) nine c) one d) two

Ex Output:

d