How should you react if you notice a pedestrian in a crosswalk?

When you notice a pedestrian in a crosswalk, stopping and yielding to the pedestrian is the appropriate action. This behavior is fundamental to ensuring pedestrian safety and complying with traffic laws. Crosswalks are designated areas for pedestrians to safely cross the street, and drivers are legally required to allow them to do so without obstruction. By stopping, you show respect for the pedestrian's right of way, reducing the risk of accidents and fostering a safe environment for all road users.

Other options suggest actions that either increase risk to the pedestrian or are legally inappropriate. Speeding up or continuing at the same speed could lead to a collision, jeopardizing the safety of the pedestrian. Honking your horn may startle them instead of helping, and does not substitute for yielding the right of way. Hence, yielding to pedestrians is not just a legal obligation but also a crucial practice in promoting road safety.