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]: Streptomyces are of special interest for ____ reasons.\Question: Choose the right answer from options given a) nine b) seven c) four d) two
[A]: d


[Q]: Grasshoppers can fly at speeds up to ____ miles per hour.\Question: Choose the right answer from options given a) eight b) seven c) two d) nine
[A]: a


[Q]: Disaccharides are sugar molecules composed of ____ monosaccharide units.\Question: Choose the right answer from options given a) no b) seven c) two d) eight
[A]:
c