When driving behind a slow vehicle on a roadway while a continuous centre white line is marked to your left:

1. You are only permitted to overtake if the slow vehicle is a non-motor one.
2. You are permitted to overtake if the vehicle in front drives slow for a long time
3. You are permitted to overtake, unless a prohibitory sign is placed.
4. Correct answer: You are permitted to overtake, providing you do not cross the continuous centre line..

WhyWith a solid center line you may overtake only without crossing it, for example a slow vehicle driving on the shoulder. Crossing the solid line is not allowed, however long you wait.