Pedestrians have the right of way at which of the following locations?

The correct answer highlights that pedestrians have the right of way specifically at marked crosswalks. Marked crosswalks are designated areas on the roadway that indicate where pedestrians can safely cross. These areas are equipped with signage and often pavement markings, making it clear to both drivers and pedestrians. This legal right of way ensures that motorists must yield to pedestrians at these locations, enhancing safety for individuals crossing the road.

While pedestrians do have certain rights at unmarked crosswalks and intersections, these situations can depend on local traffic laws and may not offer the same level of protection as marked crosswalks. Therefore, while option B suggests that pedestrians have the right of way everywhere, this is not accurate, as there are specific rules and conditions that apply. The regulation concerning intersections without signals (option C) also indicates that pedestrians should be given the right of way, but it may not cover all scenarios uniformly. As for option D, the rights of pedestrians at stop signs are conditional, as drivers at stop signs must yield to pedestrians crossing, but this answer is less comprehensive than marked crosswalks.

Thus, the emphasis on marked crosswalks reflects a clearer legal standard for pedestrian right of way, making it the most suitable choice in this context.