What information is shown on the primary flight display?

The primary flight display (PFD) is integral in providing critical flight information to the pilot in a concise and organized manner. The correct answer encompasses essential parameters necessary for safe flight operations and effective situational awareness.

Altitude is vital for maintaining flight safety and ensuring adherence to airspace requirements. Airspeed is crucial for controlling the aircraft and preventing stalls. Attitude indicates the aircraft's orientation relative to the horizon, which is essential for maintaining level flight and navigating through turns. Turn coordination is important for understanding how well the aircraft is balanced during turns, and vertical speed offers insight into whether the aircraft is climbing, descending, or level. Lastly, heading is necessary for navigation, providing information about the aircraft's current flight path relative to true north.

Other answer choices include certain important flight parameters, but they do not provide the comprehensive range of information that the primary flight display is designed to show. By including all the elements listed in the correct choice, pilots can have a complete picture of their aircraft's performance and navigation, which is crucial for effective instrument flying.