What should a driver approach doing when encountering a roundabout?

Answer: B — prepare to yield to traffic

When approaching a roundabout, it is essential for a driver to prepare to yield to traffic. Roundabouts are designed to improve the flow of traffic and enhance safety at intersections. The fundamental rule when entering a roundabout is that drivers must yield to vehicles already in the roundabout. This helps to prevent collisions and ensures a smoother traffic flow. In addition to yield signs, drivers should also be aware of pedestrians and cyclists who may be using the roundabout area. Yielding as you approach allows for a safe merging into the circulating traffic while maintaining the roundabout's intended function. This strategy not only aids in individual safety but improves the overall effectiveness of the roundabout system by reducing delays and conflicts among vehicles. Maintaining awareness of surrounding traffic and yielding appropriately ensures that the driver can enter the roundabout safely when there is a gap in traffic, making this behavior vital for effective roundabout navigation.