What is the selected airspeed?

The selected airspeed refers to the airspeed that the flight crew has set or is maintaining during a flight phase. In the context of the A320, this can be part of managed or selected mode on the flight guidance system. Each of the numerical answers corresponds to different potential speeds, and in this case, the answer being 230 likely represents the airspeed that is most commonly used during a specific phase of flight, such as departure or cruising, reflecting operational standards for the aircraft under typical load and environmental conditions.

In practice, 230 knots can also align with regulatory speed limits (like those applied in certain airspace or during specific flight operations), making this choice not only typical but also sensible for flight safety and efficiency. Therefore, in the context of aircraft operation and management of speed, 230 knots would be the most appropriate selected airspeed in this multiple-choice scenario.