Final Answer:
Tonnies, Durkheim, Weber all focused their studies on sociology.
Step-by-step explanation:
Emile Durkheim, Max Weber, and Ferdinand Tonnies were prominent sociologists who made significant contributions to the field of sociology in the late 19th and early 20th centuries. Sociology is the systematic study of human society, its institutions, and social relationships. Each of these sociologists had distinct areas of focus within the broader discipline.
Emile Durkheim, often regarded as the father of sociology, concentrated on the study of social facts and the impact of social forces on individual behavior. His work laid the foundation for understanding the role of institutions in shaping societal norms and values.
Max Weber, on the other hand, explored the relationship between culture, economy, and social structures. He introduced the concept of the "Protestant work ethic" and emphasized the importance of understanding the subjective meanings individuals attach to their actions.
Ferdinand Tonnies delved into the analysis of social groups and the distinction between Gemeinschaft (community) and Gesellschaft (society). His work focused on the qualitative aspects of social relationships, highlighting the difference between traditional, close-knit communities and modern, impersonal societies.