Explanation:

- Weber (Option 2) viewed bureaucracy as an efficient organizing structure. He described it as a system with a hierarchy of paid, full-time officials forming a chain of command. He emphasized the structured and rule-based nature of bureaucracies.

Correct Answer: Weber

- Marx (Option 1) focused on class struggle and the dynamics of capitalism. He criticized bureaucracies as tools of capitalist oppression but did not conceptualize their organizational structure like Weber.

- Wright Mills (Option 3) is best known for his work on the power elite and the role of individuals in power structures, not the organizational structure of bureaucracies.

- MacIver (Option 4) was a sociologist who wrote about social theory and the complexities of social structures, but bureaucracy wasn't a primary focus for him like Weber.