Answer:
D: Logical fallacies are unethical, because they use logic to emphasize falsehoods.
Explanation:
The statement of option D is false because logical fallacies is an error in reasoning and presenting a an idea that people think is true but is false, it is a false belief. But logic is one of the ways to present evidence in order to persuade the audience, which is accompanied by evidences. There is no room for falehoods, only facts.