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').

[Q]: Nymphs feed and mature through five instars in about ____ to eight weeks.\Question: Choose the right answer from options given a) six b) five c) seven d) zero
[A]: a


[Q]: Young emus are very vulnerable to disease until they are about ____ months old.\Question: Choose the right answer from options given a) no b) ten c) six d) three
[A]: d


[Q]: Nymphs have six legs, and adults have ____ legs.\Question: Choose the right answer from options given a) no b) one c) four d) eight
[A]:
d