A "chauvinist" is best described as?

The term "chauvinist" refers to an individual who holds an unreasonable or excessive belief in the superiority of their own group, often at the expense of others. This belief is typically rooted in biases related to gender, nationality, or other identity markers. The essence of being a chauvinist lies in the promotion of one's own group as superior, while dismissing or devaluing others.

This understanding aligns perfectly with the definition provided in option B, highlighting the prejudiced belief that characterizes a chauvinist. In contrast, the other options describe attitudes or behaviors that support equality (option A), embrace diversity (option C), or seek to avoid conflict (option D), all of which are fundamentally opposed to the concept of chauvinism. Thus, option B accurately encapsulates the essence of a chauvinist's beliefs and attitudes towards others.