Final answer:
Authority and organizing are called the Siamese twins of management.
Step-by-step explanation:
The statement that authority and organizing are called the Siamese twins of management is True. Authority refers to the power or right to give orders, make decisions, and enforce obedience, while organizing is the process of arranging resources and activities in a structured and effective manner. Both authority and organizing are essential elements of management as they ensure that tasks are assigned, coordinated, and completed in order to achieve organizational goals.