instruction:
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').
question:
Some people have ____ symptoms until the liver has been quite severely damaged.\Question: Choose the right answer from options given a) eight b) no c) nine d) ten
answer:
b


question:
Today there are ____ federal states, each based on cultural affiliations.\Question: Choose the right answer from options given a) one b) nine c) seven d) zero
answer:
b


question:
Lines generally have ____ contours on surfaces, providing optic contrasts.\Question: Choose the right answer from options given a) two b) ten c) seven d) four
answer:

a