To make a strong argument, the writer or speaker must avoid logical fallacies.
This is because a fallacy is something that is untrue, thus if it was logical your reader might be persuaded against your argument. Basically, as a writer you don't want to contradict yourself and you only want to support one side of an argument.
Hope this helps! :)
The answer is A. Third person
C. Because if your reading a peers story the most likely want constructive criticism. That’s supposed to help the writer improve their skills!