When there are two or more lanes of traffic moving in the same direction, how should you pass a vehicle?

Answer: B — On the left

Passing a vehicle on the left when there are two or more lanes of traffic moving in the same direction is the safest option because it allows for proper visibility and more room for maneuvering. Option A is incorrect because passing on the right is only allowed when there is a designated lane for it, or when the vehicle in front is making a left turn. Option C is incorrect because passing in any lane can be dangerous and cause confusion for other drivers. Option D is incorrect because it is never safe to wait for the vehicle ahead to move out of the way before attempting to pass. Instead, it is important to make a decision and safely pass the vehicle on the left.