Explanation:

- Option 1: Weber

- Max Weber was a German sociologist known for his theory of bureaucracy and rationalization.

- He didn't specifically develop the concept of a "legitimation crisis."

- Option 2: Dahl

- Robert Dahl was an American political theorist known for his work on democracy and pluralism.

- He did not conceptualize a "legitimation crisis."

- Option 3: Habermas

- Correct Answer

- Jürgen Habermas, a German philosopher, developed the concept of "legitimation crisis" in the context of social and political theory.

- It refers to the decline in the ability of systems to maintain legitimacy or a consensus among the populace.

- Option 4: Frank Parkin

- Frank Parkin was a British sociologist known for his work on social class and exclusion.

- He did not focus on the concept of "legitimation crisis."