What does a solid white line indicate?

Answer: C — Do not change lanes; it marks the edge of the lane

A solid white line is a road marking that indicates that changing lanes is discouraged or prohibited. It serves as a clear visual cue for drivers that they should remain in their lane, promoting safety by reducing the risk of collisions that could occur during lane changes in areas where visibility or space may be limited. This type of marking can also delineate areas where lanes merge or where there are special driving conditions, such as near intersections or pedestrian crossings. Recognizing this marking helps drivers follow traffic regulations and contributes to the overall orderliness of traffic flow. Understanding the implications of solid white lines helps ensure safer driving habits on the road.