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]: Classes play ____ distinct roles in object-oriented programming.\Question: Choose the right answer from options given a) eight b) zero c) two d) no
[A]: c


[Q]: Some skulls show the marks of up to ____ bullets.\Question: Choose the right answer from options given a) five b) three c) eight d) six
[A]: d


[Q]: Glycolysis oxidizes glucose to ____ pyruvic acid molecules.\Question: Choose the right answer from options given a) two b) zero c) eight d) three
[A]:
a