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
B C and D are all good answers but most likely it would be D because the writer of a diary isn’t expecting to have their work published.