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:
Nymphs emerge in ____ to seven days and flatten themselves against the leaf to feed.\Question: Choose the right answer from options given a) one b) five c) nine d) two
answer:
b


question:
Some male fish return after just ____ years.\Question: Choose the right answer from options given a) no b) two c) one d) six
answer:
b


question:
Earthworms have ____ means of regulating temperature or water loss.\Question: Choose the right answer from options given a) one b) no c) four d) zero
answer:

b