Which of the Following Is an Example of Prejudice

Which of the following is an example of prejudice?

A) Danielle thinks all whites are racists.
B) To make his Asian employees feel good, Mr. Jones, who is white, gave them higher bonuses than he gave his white employees.
C) Justine was promoted because the firm needed one French-Canadian manager.
D) Olga's salary is $5000 less than that of her male counterpart.