What must drivers do when a pedestrian is crossing at a marked crosswalk?

Answer: B — Yield the right of way to the pedestrian

When a pedestrian is crossing at a marked crosswalk, drivers are legally required to yield the right of way to the pedestrian. This rule is in place to ensure the safety of pedestrians and to promote safe interactions between vehicles and those on foot. By yielding, drivers allow pedestrians to cross safely without fearing for their own safety, adhering to traffic laws that prioritize pedestrian movement at designated crosswalks. Understanding this responsibility is crucial for drivers, as it demonstrates a commitment to road safety and awareness of pedestrian needs. Yielding not only fosters a safer environment for all road users but also helps reduce traffic accidents involving pedestrians. This is particularly important in busy urban areas where foot traffic is high and visibility may be compromised by other vehicles or environmental factors.