Explanation:

- W. G. Sumner referred to his model of society as a consensus model.

- Consensus model ( Correct Answer): This model sees society as held together by shared norms, values, and agreement among its members. Sumner emphasized folkways and mores as key to social order.

- Developmental model: Focuses on society evolving over time, but Sumner didn't primarily use this framework.

- Conflict model: Argues society is shaped by conflict between groups, but Sumner was more focused on shared culture than conflict.

- Progressive model: Implies a direction toward improvement, which was not Sumner's emphasis.