When must a driver yield the right-of-way to pedestrians?

A driver must yield the right-of-way to pedestrians at all marked crosswalks and when pedestrians are in unmarked crosswalks at intersections because this is a fundamental safety rule designed to protect pedestrians. Marked crosswalks are specifically designated areas where pedestrians are encouraged to cross, and drivers are legally obligated to yield in these situations to ensure pedestrian safety.

Unmarked crosswalks, often found at intersections, are areas where pedestrians have the right to cross the street, even if there are no road markings indicating a crosswalk. Yielding in these situations is important to prevent accidents and to promote safe sharing of road space between vehicles and pedestrians.

Traffic lights and specific locations, such as city limits or holidays, do not dictate a driver's obligation to yield to pedestrians. The rule applies universally whenever pedestrians are present in these crosswalks, making option B the correct and comprehensive response.