A. Use headlights at night on lit motorway and roads with a speed limit in excess of 80 km/h
B. Use dipped headlights at night in built-up areas unless the road is well lit
C. Cut down glare, if your vehicle has dim-dip; use it instead of dipped headlights in dull daytime weather and at night in built-up areas with good street lighting
D. All of the above