(50) According to the passage, which of the following statements is true?
(A) Researchers have found that marriages are more likely to be successful if partners spend at least 6hours a week visiting chat rooms.
(B) Experts have found that spending too much time on the Internet can pose potential dangers to socialrelationships.
(C) Dr. Cash started to treat Web over-users at Internet Computer Addiction Services six years ago.
(D) Normal people would like to spend time researching their family tree on the Internet.