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:
China is reportedly in the top ____ nations in industrial output.\Question: Choose the right answer from options given a) seven b) ten c) three d) five

Ex Output:
b


Ex Input:
Youth unemployment is ____ times the adult level.\Question: Choose the right answer from options given a) one b) three c) seven d) no

Ex Output:
b


Ex Input:
Spiders have ____ tiny eyes.\Question: Choose the right answer from options given a) ten b) four c) eight d) two

Ex Output:

c