Hatred and Violent Actions Toward an Out-Group Will Occur When

Hatred and violent actions toward an out-group will occur when:

A) People are randomly divided into two groups and the out-group is perceived as threatening.
B) People are randomly divided into two groups and the in-group is perceived as superior.
C) When our in-group is perceived as especially good and the out-group is perceived as threatening.
D) All of the above