A Survey of Online Activities of Teenagers in Silicon Valley,California,and

A survey of online activities of teenagers in Silicon Valley,California,and Beijing,China,found that:

A) Beijing students spent more time online overall
B) neither group of students spent much time on social networking sites
C) only Silicon Valley students engaged in online social networking
D) Silicon Valley students were more technologically advanced
E) the main online activity of both groups during the week was schoolwork related