In the context of group identity, identify a true statement about ethnocentrism.
a. it implies simply taking pride in one's group and not asserting the group's superiority over other groups.
b. it refers to the impaired group decision making that occurs when making the right decision is less important than maintaining group harmony.
c. It implies that cultural outgroups are not only different but also worse than one's own group.
d. it refers to an unjustified negative attitude toward an individual based on the individuals membership in a particular group.