According to paragraph 2, what is the main purpose...

Câu hỏi: According to paragraph 2, what is the main purpose for using background music?

A. Sound helps build and sustain relationships between films and viewers.

B. Background music can control how the audience should react to a scene.

C. Background music can influence both everyone’s mood and choices.

D. A musical atmosphere can actually motivate people to do risky things.