Final answer:
Ride in the center portion of the left-hand lane of a four-way roadway for best visibility and safety.
Step-by-step explanation:
If you need to ride in the left-hand lane of a four-way roadway, you should ride in the center portion of the lane. The center portion provides the best visibility and allows you to maintain a safe distance from both the left and right sides of the lane. By riding in the center portion, you can also be more visible to other drivers on the road.