Chris is and cooperative and takes care of his family and friends. aaron is selfish and arrogant and puts his needs before his family and friends. whose traits would likely be selected for future generations in order to meet the evolutionary goals of humans?

Chris's traits would most likely be selected.
According to evolutionary psychology, there are specific behavioural and personality traits which can be seen as evolutionary adaptations. These traits increase the survival rate of the human species and improve the adaptation of the human population in its environment. In this example, Chris is helpful and cooperative, therefore he helps the rest of the community and he is also taking care of his kins and friends. These can increase the survival rate of the human population. 

Ibelieve appendix i maybe wrong