The example that most clearly shows rhetoric in action is D. A TV show that mocks the arguments of the current U.S. president.
Rhetoric is the art of using language effectively and persuasively. In this case, the TV show is using language (and humor) to persuade viewers to see the arguments of the U.S. president in a certain way. The show is also using rhetoric to make a point, which is a key characteristic of the art of rhetoric.