Which of the Following Pieces of Evidence About Media Violence

Which of the following pieces of evidence about media violence and violent behaviour has the best internal validity?

A) Laboratory studies demonstrate that exposure to violent media leads to increases in aggressive actions and thoughts.
B) Correlational evidence reveals that children who watch the most violent TV have more aggressive behaviours.
C) Longitudinal studies show that kids who watch more violent media become more aggressive as they grow up.
D) Field studies demonstrate that when a town gets access to TV, rates of aggression increase.