Tobias Greitemeyer's Research on the Effect of Video Games Suggests

Tobias Greitemeyer's research on the effect of video games suggests that

A) participants who play prosocial games in the lab will help more than participants who play neutral games.
B) participants who play prosocial games in the lab will help less than participants who play neutral games.
C) participants who play prosocial games will help, but only when there is very low cost to helping.
D) people who do not like video games are likely to help others.
E) people whose siblings play prosocial games will be more prosocial themselves.