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:
Earthworms have ____ pairs of hearts.\Question: Choose the right answer from options given a) seven b) five c) one d) no
answer:
b


question:
Studies show that childhood obesity is epidemic and that ____ in five children is overweight.\Question: Choose the right answer from options given a) one b) two c) nine d) ten
answer:
a


question:
Puffins have ____ sets of eyelids, inner and outer.\Question: Choose the right answer from options given a) eight b) no c) ten d) two
answer:

d