Considering the situation described above, this is a Macro-level approach, and the theoretical approach to sociology Durkheim was using is Structural Functionalism.
The macro-level approach or theory assesses how the entire society or community interacts, usually between the components such as people and the environments.
Similarly, Structural Functionalism is one of the Macro-Level Approaches that focus on society and its components.
Given that Durkheim focused on the way each segment of society does its part, as members of a team, this is an example of Structural Functionalism.
Hence, in this case, it is concluded that Durkheim used Structural Functionalism to understand his study, a form of Macro-Level approach.
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