Hm, are you sure you got the question right? Because all of the sentences are written in active voice! Active voice is essentially everything that is not in the passive voice, and I don't see any passive voice here.
Passive voice would be formed with subject+form of "to be" + past participle,
and we have no example of this. All of the sentences here are in active voice.
Your answer is B your welcome
C. Education beyond high school versus education beyond college because in the other examples you can't really use those topics because there isn't really much about them, but in example C. you can tell the two similarities in both the high school and college, and you could put there differences. Hope I helped!
Answer:
it is a sentence fragment