Which Set of Research Findings Was Used in the Supreme

Which set of research findings was used in the Supreme Court case of Brown v. Entertainment Merchants (2010) , which was a case that debated whether banning the sale of violent video games to minors was unconstitutional?

A) Careful studies have indicated that playing violent video games does not make adolescents more aggressive.
B) Careful studies have indicated that playing violent video games indeed makes adolescents more aggressive.
C) Putting labels on games to alert adolescents and their parents to violent content effectively restricts the sale of violent games.
D) There is a causal relation between playing violent video games and being arrested for an assault.