Which of these markings is an example of three lane streets?

The correct choice illustrates three-lane streets where the leftmost lane is marked by solid yellow lines. This marking indicates a separation between lanes traveling in opposite directions, which is characteristic of roads with multiple lanes. The presence of solid yellow lines clearly delineates lanes, giving drivers important visual guidance about where they should position their vehicle.

In contrast, the other choices describe different contexts that do not specifically relate to the markings on three-lane streets. For instance, showing a parallel lane on the right does not indicate the overall structure or number of lanes. Similarly, clover lanes or weave lanes pertain to interchange designs rather than straight roadway markings for three-lane streets. Finally, lanes with traffic lights refer more to controlled intersections rather than roadway markings defining the number of lanes. Therefore, the solid yellow line configuration indicates a three-lane street effectively, ensuring clarity in lane usage for drivers.