When should a driver yield the right-of-way at the airport?

Answer: C — At crosswalks and when emergency vehicles approach

A driver should yield the right-of-way at crosswalks and when emergency vehicles approach because these situations are critical for ensuring the safety of pedestrians and the timely response of emergency services. At crosswalks, pedestrians have the right to cross, and yielding here helps prevent accidents and injuries. When emergency vehicles, such as ambulances or fire trucks, are approaching with lights and sirens, it is essential for drivers to yield to allow them to proceed without delay. This action is not only a matter of law but also an important practice for maintaining safety in busy airport environments where both pedestrian traffic and emergency responses can be significant. By understanding and adhering to these yielding requirements, drivers contribute to a safer airport atmosphere for everyone.