What should be done if a pedestrian is crossing at a marked crosswalk?

When a pedestrian is crossing at a marked crosswalk, the appropriate action is to slow down and prepare to stop. This is crucial for ensuring the safety of the pedestrian. Marked crosswalks indicate that the area is designated for pedestrians to cross, and drivers are typically required by law to yield to them. Slowing down allows the driver to assess the situation properly and react as necessary, which can prevent potential accidents.

Yielding to pedestrians emphasizes the responsibility drivers have to protect those who are more vulnerable on the road, like pedestrians. It also shows an understanding of traffic laws that prioritize pedestrian safety. The other options do not prioritize safety in the same way; continuing to drive or passing quickly could put the pedestrian at risk, while honking the horn might startle them rather than encouraging safe crossing.