Both A and C could be correct, but i'd go with A.
The statement that best exemplifies a strong persuasive claim is the last one - School communications should be sent electronically to conserve paper.
In this sentence, you have your claim that you want to prove, as well as the reason why your claim is correct. The other options are just facts, they are not sentences you would use in order to persuade someone to believe or do something.
Answer:
So this is actually great for what we are going through world wide with racism and all this other stuff. People expect things to change but they don't want to start the change. So nothing gets done. If you want something done/changed then you have to do it. Don't wait for anyone else just do it because they will most likely follow along because you started it.
Explanation: