What does a continuous, solid white center line indicate on the road?

Answer: B — It may not be crossed or touched by vehicle wheels

A continuous, solid white center line indicates that it may not be crossed or touched by vehicle wheels. This line signifies a clear boundary between lanes of traffic moving in the same direction, and crossing this line is prohibited to maintain safety and reduce the likelihood of collisions. When drivers see this marking, it is a signal to remain in their lane, as straying over the line could disrupt the flow of traffic or lead to unsafe driving conditions. In contrast, the other options do not align with the meaning of this marking; vehicles must adhere to the restrictions set by this solid line to promote safe driving practices and ensure a predictable roadway environment.