A manager studied management principles and industry standards before making a decision. Which feature of the professional nature of management is shown?

Correct answer: Use of specialised knowledge

The governing concept is specialised knowledge as a feature of a profession. A professional manager does not rely only on instinct or chance; the manager studies relevant principles, standards, evidence and business conditions before selecting a course of action. In the situation given, management principles provide a conceptual guide and industry standards provide accepted benchmarks for responsible practice. Applying them to a decision demonstrates the use of specialised knowledge, so option A is correct. Option B is the opposite because the manager uses informed reasoning rather than luck. Option C concerns entry conditions and is not shown by studying principles. Option D is also incorrect because using standards can support service to customers, employees and other stakeholders. The evidence in the situation directly supports A.