When must a driver yield the right-of-way?

Answer: B — When entering a roundabout or at a yield sign

A driver must yield the right-of-way in specific situations to ensure safety and smooth traffic flow. One key situation is when entering a roundabout or approaching a yield sign. In these scenarios, yielding allows merging traffic to flow more efficiently and prevents collisions. When a driver enters a roundabout, they must yield to any traffic already in the roundabout; this helps to maintain continuous movement and reduces the risk of accidents. Similarly, a yield sign clearly indicates that drivers must give way to oncoming traffic or pedestrians when necessary. By yielding in these situations, drivers can contribute to safer and more organized road conditions for everyone. While yielding at stop signs is also important, the responsibility to yield is broader and applies in various contexts, such as merging onto a highway or at yield signs. Furthermore, the idea that a driver has the right-of-way at all times is a misunderstanding. Right-of-way rules are fundamental to traffic laws as they ensure that road users act predictably and safely in different driving situations.