Which aircraft has the right of way when landing?

The correct choice regarding which aircraft has the right of way when landing is the lower aircraft. According to standard aviation procedures, when two aircraft are approaching to land, the aircraft at a lower altitude typically has the right of way. This principle is based on the idea that the lower aircraft is already committed to its landing approach and is thus more imminent in its landing, reducing the potential for conflict during landing maneuvers.

In general, aircraft approaching to land must adhere to a series of protocols to ensure safety and order. This includes the importance of maintaining proper spacing and altitude awareness, especially in environments where multiple aircraft may be transitioning to the same runway or approach path. Since the lower aircraft is at a higher risk of collision with the terrain or other aircraft in the landing phase, other aircraft, regardless of size or glide slope status, must yield to it.

The other options present various scenarios but do not hold true in standard landing protocols, which prioritize altitude as a critical factor in determining right of way during landings.