What does an unbroken white line in the center of the road signify?

An unbroken white line in the center of the road signifies that overtaking is not permitted. This indicates a clear guideline for drivers, emphasizing safety and control in traffic situations. The unbroken line serves as a visual barrier, making it clear that crossing it to overtake another vehicle could result in dangerous situations, particularly if there is oncoming traffic. The rule surrounding the unbroken white line is part of road regulation designed to reduce accidents and promote orderly behavior on the roads.

In the context of other choices, an unbroken white line does not indicate that overtaking is allowed, nor does it denote a pedestrian crosswalk or function as a lane-dividing line that permits lane changing. Instead, it enforces the rule that drivers must remain in their lane and maintain a safe distance from other vehicles.