Research by Gentile Et Al

Research by Gentile et al.(2009) on media effects and helping behavior found that

A) people assigned their partner the easiest puzzles after playing a prosocial video game.
B) people assigned their partner the easiest puzzles after playing a violent video game.
C) people were more likely to answer more questions on a questionnaire after playing a prosocial video game.
D) people were more likely to answer fewer questions on a questionnaire after playing a violent video game.