What should a driver do when they see a pedestrian crossing at a marked crosswalk?

When a driver sees a pedestrian crossing at a marked crosswalk, the appropriate action is to stop and yield to the pedestrian. This ensures the safety of the pedestrian, who has the right of way in this situation. Marked crosswalks are designated areas specifically for pedestrians to cross safely, and traffic laws require drivers to be alert and give priority to pedestrians utilizing these crosswalks.

Yielding helps maintain a safe environment for both pedestrians and drivers, reducing the risk of accidents. It also fosters a culture of respect for pedestrian rights, encouraging safer walking conditions in the community.

While other options might suggest different actions, such as accelerating or merely slowing down, these do not prioritize pedestrian safety and could lead to dangerous situations resulting in injuries or accidents. Therefore, the correct approach is to always stop and yield to pedestrians at marked crosswalks.