Answer:
4) is associated with an increase in aggressive behaviors
Step-by-step explanation:
APA started to research the topic in 2005, since many news outlets related violent videogames, for example, to mass shooting, violent teenagers, ...
Lots os scientists took part in this project, and their meta-analysis found a relation between the entertainment violene and agressive behaviors.
So the correct answer is:
4) is associated with an increase in aggressive behaviors