One Issue That Concerns Social Scientists, According to This Article

One issue that concerns social scientists, according to this article, about the new forms of social networking is best expressed in which of the following statements?

A) These new forms of communication are taking the place of face-to-face interaction for teens, which separates them from physical activities with others.
B) Teens' excessive use of new forms on online communication is taking them away from engaging in athletic events.
C) New forms of online communication are taking the place of watching television, where there is lots of education programming for teens to watch.
D) This article discussed all of the above as problems with online communications.