Explanation:

- Option 1: V. Pareto

- Vilfredo Pareto, an Italian sociologist and economist, differentiated between logical and non-logical actions.

- Logical actions are those with a clear, rational intent and outcome.

- Non-logical actions are guided by sentiments and do not result from a logical reasoning process.

- Correct Answer

- Option 2: Radcliffe-Brown

- A prominent English social anthropologist.

- Known for his structural-functional approach to society.

- Did not focus on differentiating logical and non-logical actions.

- Option 3: Max Weber

- A German sociologist and political economist.

- Known for his analysis of bureaucracy and "ideal types."

- Although he identified types of social actions, he did not specifically categorize them as logical vs. non-logical.

- Option 4: S.F. Nadel

- A British-Austrian anthropologist.

- Focused on the role of individuals in social processes.

- Did not specifically address logical and non-logical actions.