Domanda 4, Operational Procedure - PPL(A) English - Private Pilot License (Aircraft)

How can the pilot of an an engine-driven aircraft minimise the noise emission during descent and approach?
Descent and approach in landing configuration while maintaining a descent angle of 3°, direct approach whenever possible
Low approach with minimum power setting, late configuration and steep approach, adherence to established arrival routes
High approach with minimum power setting, late descent, late configuration, adherence to established arrival routes