Answer:
I believe its copper and nickel.
Explanation:
I am not completely sure, just throwing an opinion
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.
