Under what conditions may a recreational pilot demonstrate an aircraft in flight to a prospective buyer?

A recreational pilot demonstrating an aircraft in flight to a prospective buyer must adhere to specific regulations which limit their authority. According to aviation regulations, a recreational pilot does not have the legal privilege to carry a passenger for compensation or hire, nor can they engage in any commercial operations.

In this context, option "C," indicating that no specific conditions are permitted under which a recreational pilot can demonstrate an aircraft, is correct. A recreational pilot is not authorized to conduct such a flight for any form of compensation, and demonstrating an aircraft to a buyer would typically be considered a commercial operation. Therefore, without the appropriate certification, such as a private or commercial pilot license, a recreational pilot cannot legally demonstrate an aircraft in flight.

This understanding reinforces the importance of a pilot's licensing and the operational limits imposed by aviation regulations.