What does a broken white line indicate?

Answer: B — Lanes where passing is allowed

A broken white line serves a specific purpose in roadway markings. It indicates that lanes of traffic moving in the same direction are separated, and vehicles are permitted to change lanes, including the option to pass another vehicle. The presence of this type of line conveys to drivers that they can safely maneuver between lanes when conditions permit, such as when the lane they are moving into is clear, without endangering themselves or others on the road. In contrast, solid lines are used to indicate where passing is not allowed, which is crucial for safety. Understanding this distinction helps drivers make informed decisions about when and where it's safe to change lanes or pass other vehicles, contributing to overall road safety.