Which of the Following Is the Most Widely Held Theory

Which of the following is the most widely held theory of prejudice?

A) The Global Personality Type theory, which attributes prejudice to the existence of a certain personality type manifesting traits that lead to racism.
B) The Social Norm theory, in which social norms rather than individual motivation drive prejudice.
C) The Frustration-Aggression-Displacement hypothesis, which attributes prejudice to frustrations in one's own life.
D) The Rankism theory, in which abuse of rank and power is the underlying cause of all racism.