单项选择题
Here are some statements about prejudice, which one is incorrect?( )
A.Prejudice is a rigid and irrational generalization about a category of people.
B.Prejudice is expressed in different ways, sometimes subtle and indirect, sometime clear and direct.
C.Hostility toward others is not the result of prejudice.
D.A person with prejudice will talk about a person or a group negatively behind their back.