What does a solid white lane marking mean?

Answer: B — traffic is going the same direction, do not attempt lane change

A solid white lane marking indicates that traffic is going in the same direction, and drivers should not attempt lane changes. This is important for maintaining the flow of traffic and increasing safety on the road. When a driver sees a solid white line, they should remain in their lane and not try to switch lanes, as this could result in dangerous situations such as side-swiping or collisions. It's crucial to follow lane markings to prevent accidents and drive responsibly. Option A is incorrect because a solid white lane marking does not signify traffic going in different directions. Option C is incorrect because it describes a situation where traffic is going in different directions, which does not apply to a solid white lane marking. Option D is incorrect because it suggests that a driver may switch lanes when faced with a solid white lane marking, which is not the correct interpretation.