Answer:
The main idea of this passage is to get enough sleep. Lack of sleepness can reduce a person´s ability to concentrate.
Explanation:
Disc Jockeys or DJs are required to play musical recordings in parties or events. Roles of these professionals vary depending on the purpose or the setting of the music. They may work for radio stations where they play musical selections from playlists. Among genres played by DJs are classic rock, heavy metal, adult contemporary, light rock, jazz, country western, gangsta rap, hip hop, among other music styles.
A. Because C and D indicate things you shouldn't do when locating underlined words and for B there may not be any directions that go along with the underlined text