In what realm of anthropology did Emile Durkheim primarily contribute?

Emile Durkheim is primarily recognized for his foundational contributions to the field of sociology, but his work also significantly influenced social anthropology. His research focused on the ways in which individuals are shaped by collective societal forces, a theme central to social anthropology. Durkheim's studies emphasized the importance of social structures, norms, and values in understanding human behavior and social cohesion.

His seminal studies, such as "The Division of Labor in Society" and "Suicide," explored how societal conditions and collective consciousness affect individuals. This approach aligns closely with social anthropology, which examines the relationships and interactions within societies, and how social structures impact cultural practices. Thus, Durkheim’s focus on the collective aspects of human life firmly places him within the realm of social anthropology, making it the correct answer.