Which topic is narrow enough to serve as the subject of a documented essay?

A.) the media

B.) radio broadcasting

C.) the Internet

D.) trends in teen Web design

The correct answer is D.) trends in teen Web design

The media covers a lot such as tv, radio, internet, and others, so it's not specific enough. Same goes for radio which can also be separated into audience studying, ways a radio transmission works, or similar. Same goes for internet.

The t opic is narrow enough to serve as the subject of a documented essay would be D. trends in teen web design. The more specific the topic is, the narrower the subject to be documented will be. The media, the internet as well as radio broadcasting are of more general types.