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:
Fever usually lasts for an average of ____ days in adults.\Question: Choose the right answer from options given a) zero b) three c) nine d) two
answer:
b


question:
Microwave ovens emit ____ kinds of radiation.\Question: Choose the right answer from options given a) six b) two c) four d) eight
answer:
b


question:
Ruthenium is a hard, white metal and has ____ crystal modifications.\Question: Choose the right answer from options given a) four b) three c) five d) nine
answer:

a