单选题 Since then, Cash has focused her practice on video -game and Internet addiction, treating patients who use their electronic media so obsessively that they stop sleeping and eating properly, ruin relationships with loved ones, suffer repetitive use injuries such as eye strain and carpal tunnel syndrome, and develop depression and anxiety, among other things. Cash's private practice is located in Redmond, Wash. , the home of Microsoft--not an entirely surprising hub of compulsive Internet and video- game use, she says. Indeed, the Seattle--Tacoma area is the nation's 13th largest media market, and has the highest level of Internet use in the country; according to a recent study, more than 45% of adults in the area regularly play video games. "There 's nothing wrong with this technology," says Cash, who is careful to note that it's not the medium that is to blame, but rather, the lack of education about it. "It's all in how it's used"
Which of the following is not a symptom of video - game and Internet addiction according to Cash?

• A. The stop of sleeping and eating properly.
• B. The suffer from repetitive use injuries.
• C. The ruin of relationships with loved ones.
• D. Insomnia and other health problems.