Read this introduction to a magazine article. Headphones are everywhere! People are locked in their worlds of downloaded music, relying on their private music libraries for entertainment. In doing so, they are ignoring a diverse world of radio offerings that could enrich and entertain. Local radio stations provide music and news, while National Public Radio (NPR) broadcasts discourse and entertainment for all tastes.

What will most likely be included in the magazine article that follows this introduction?

examples of radio programs
safety tips for headphones
suggestions for music downloads
historical radio broadcasts

THE ANSWER IS A. USING FOR LATER REFERENCE