Luther operates a small nightclub that specializes in soul music and features up-and-coming African American singing groups. He actively discourages white couples from coming in and always gives them the worst seats if they insist on being admitted. Luther's behavior is BEST described as an example of ______.

A) prejudice
B) ambiguity
C) discrimination
D) oppression

Discrimination

The unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, or sex.

Prejudice

A preconceived opinion or bias against an individual or group without sufficient information, often leading to discrimination and social injustice.

Oppression

Oppression involves subjecting a group or individual to unjust treatment or control, often systemically through institutional, social, or economic means.