Cell phones must not be banned in classrooms -
Because its specific about the topic the place where the topic shouldn't banned at and has an argument as to why.
Teachers and educators often explore way-
this one seems like an option to but the way its written is more of like a statement in my opinion than an argument cause it doesn't specify how they take advantage
these two seem like your best anwser
Well, your has a lot of different meanings. If you want a sentence for one of the definitions: Two men in white hats yoked a boys bike.
Yoke: to rob \to mug.
The answer would be (why)
Its you're opinion. In my opinion revenge is not the way to get true justice.