Answer:
1. C
2. B
3. D
4. C
5. The author provides evidence that supports his agruement that the internet negatively impacts teenager in the text. Brent Staples states" But a growing body of reasearch is showing that heavy use of the Net can actually isolate yonger socially connected people who unwittingly allow time online to replace face to face interactions with their families and friends." This evidence shown supports the author's agruement that the internet negatively impacts teenagers.