What is the term for a group consisting of three members?

The term for a group consisting of three members is "triad." In sociology, a triad is a specific type of social group or social unit that has three individuals. The significance of understanding a triad lies in its structure; it allows for more complex interactions compared to dyads (groups of two). In a triad, there are multiple relationships that can form simultaneously, as any member can interact with the other two. This can lead to coalition formations, conflict resolutions, and a wider range of social dynamics. Triads are also essential in studies of social networks and group behavior, as they can influence the stability and function of groups. The other options do not correctly describe a group of three; "duo" refers to a pair, "quartet" indicates a group of four, and "group of three" is an informal description rather than a specific sociological term.