You intend to overtake a slow tractor on a rural road, but there is a side road ahead and a continuous centre line begins before it. What should you do?

1. Wait; do not overtake across the continuous line or where side-road conflicts and visibility make it unsafe
2. Overtake quickly because tractors are always exempt from protection
3. Cross the continuous line only if the tractor driver waves
4. Use the shoulder on the right to pass