With the pressurization system in AUTO and landing elevation set, how is the cabin altitude controlled?

When the pressurization system is set to AUTO and the landing elevation is configured, the cabin altitude is managed automatically by the aircraft's pressurization control system. This system continuously monitors the cabin altitude and adjusts the outflow valves to maintain the desired pressure levels in response to changes in altitude during descent, ensuring that the cabin remains at a safe and comfortable altitude for passengers and crew.

The automatic control is crucial as it allows the system to respond effectively to variances in flight conditions, such as the aircraft's ascent or descent, without requiring manual intervention. By having this feature, flight crews can focus on other important aspects of flight management rather than constantly adjusting the pressurization system.

In contrast, the other options imply that manual control is necessary or that the system does not function automatically, which would not align with how the pressurization system is designed to operate under normal conditions. Therefore, the selection of automatic control reflects the intended functionality of the A320's pressurization system, enhancing safety and efficiency during flight operations.