Early evolutionary pressures favored humans who , and by doing so, sculpted much of the social behavior we observe today. a. chose to associate with others b. were more competitive with one another c. focused on the family unit d. exhibited strong emotional reactions

A. chose to associate with others    

Explanation:

Early evolutionary pressures favored humans who chose to associate with others, and by doing so, sculpted much of the social behavior we observe today. Those who associated with others had a higher probability of survival compared to those who lived in isolation and this played a role in the development of social behaviors. Social behaviors are developed as a result of interactions with others.

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.