When approaching a roundabout, who has the right of way?

Answer: B — The vehicles already in the roundabout

When approaching a roundabout, the correct understanding is that the vehicles already in the roundabout have the right of way. This means that drivers should yield to traffic that is circulating in the roundabout before entering. This rule is crucial for maintaining smooth traffic flow and safety within the roundabout. The primary purpose of giving priority to vehicles in the roundabout is to prevent congestion and minimize potential conflicts between vehicles entering and those already navigating through the roundabout. By allowing vehicles that are already moving to continue without interruption, it facilitates a more efficient use of the roundabout. The other options would lead to confusion and potential accidents. For instance, if entering vehicles had the right of way, it would create a scenario where multiple cars could collide as they enter without yielding, disrupting the traffic flow that roundabouts are designed to improve. Understanding this right-of-way rule is essential for all drivers to navigate roundabouts safely and effectively.