A. Drivers entering a driveway or alley should yield to bicyclists and pedestrians on the sidewalk. B. Drivers must yield the right-of-way to all emergency vehicles using sirens and/ or flashing lights by pulling over to the closest edge of the roadway and stopping. C. Vehicles in a funeral procession must have their headlights on to tell other drivers not to interfere with the procession. D. all of the above