Explanation:

- Option 1: Marx

- Karl Marx focused on class struggle and economic structures.

- He did not specifically refer to caste as a status group.

- Option 2: T. Parson

- Talcott Parsons is known for his work in functionalism.

- He did not specifically conceptualize caste as a status group.

- Option 3: Weber

- Max Weber introduced the concept of status groups.

- He analyzed caste as a type of status group, focusing on social honor.

- Option 4: Dumont

- Louis Dumont wrote "Homo Hierarchicus" on Indian caste systems.

- His emphasis was more on the ideological structure of caste.