Extrovert and Self-conscious

An extrovert is someone who is outgoing, socially confident, and enjoys being around and interacting with other people. They tend to thrive in social settings and gain energy from being with others.

Self-conscious, on the other hand, refers to being excessively aware and concerned about one's own appearance, behavior, or perceived shortcomings. It often involves feeling insecure or anxious about how one is perceived by others.

Based on these definitions, we can conclude that "extrovert" and "self-conscious" are not synonyms as they describe opposing traits. While extroverts are comfortable in social situations and enjoy being the center of attention, self-conscious individuals may feel uncomfortable and overly concerned about how they are perceived by others.

Therefore, the correct answer is B. Antonyms.