Which of the Following Is NOT One of the Four

Which of the following is NOT one of the four attributes of rhetorical form in a documentary film?

A) It addresses the viewer openly.
B) The subject of the film is usually a matter of opinion, not scientific truth.
C) The subject of the film is usually presented as a controversial issue.
D) It appeals to our emotions, rather than relying purely on factual evidence.
E) It attempts to persuade the viewer to make a choice.