Answer: C. artists and observers have varying ideas of what art is.
Explanation: Everyone has varying opinions on what is classified as art. The subject matter is often taboo as artists try to push the limits and test boundaries.
I’d suggest downloading the app, it helps explain everything.
I would say A. Advertisers tend to target their ads at a certain age group, and using different types of music can have a different appeal to a certain age group. If they want certain people paying attention to their ads, they'll most likely use a song from their generation.
