One of the General Principles of Management Explained by Fayol

One of the general principles of management explained by Fayol is "unity of command." What does this principle mean?

A) The entire organization should be moving toward a common objective.
B) The interests of one person should take priority over the interests of the organization.
C) All workers should receive orders from only one manager.
D) All workers should be given the same orders by managers.
E) All employees should be treated as equally as possible.