The correct answer is D. a structure with order and objective rationality.

Neo-classical theory is a theory of organization that emphasizes the importance of order and objective rationality. According to this theory, organizations are rational systems that are designed to achieve specific goals. To achieve these goals, organizations need to be structured in a way that allows for efficient and effective decision-making. This means that organizations need to have clear lines of authority, well-defined roles and responsibilities, and a system of rules and procedures.

Option A is incorrect because it does not emphasize the importance of order and objective rationality. Option B is incorrect because it does not emphasize the importance of structure. Option C is incorrect because it does not emphasize the importance of order and objective rationality.