How would the pilot of RYR123 respond to the clearance to land on runway 23 with wind reported at 230° at 15 knots?

The appropriate response for the pilot of RYR123 receiving a clearance to land on runway 23 is to acknowledge the clearance in a manner that confirms the pilot's understanding and intent. The response "Cleared to land runway 23 RYR123" directly reflects that the pilot acknowledges the clearance issued by Air Traffic Control (ATC) and it includes the flight number, which is essential for clarity and communication in busy airspace.

This answer is correct because it follows standard radio communication protocols used in aviation. When pilots receive a landing clearance, it is customary to repeat back the clearance in a complete format. This not only confirms receipt of the clearance but also acts as a final verification to ensure both ATC and the pilot are on the same page regarding the aircraft's intentions.

The other choices do not present the correct format or context for acknowledging the clearance. For example, simply stating "RYR123 landing on runway 23" lacks the explicit confirmation of clearance, making it less formal and potentially unclear in the busy environment of air traffic communication. Similarly, saying "RYR123 is cleared for approach to runway 23" implies that the aircraft is only cleared for the approach phase, not specifically for landing, while "Cleared for takeoff runway