Under what circumstance are you permitted to overtake a vehicle on its right-hand side in Ghana?

1. When the driver in front has signaled their intention to turn left and has pulled to the left.
2. When driving on any highway or expressway that has three or more clearly marked lanes in your direction.
3. When the vehicle ahead is a slow-moving agricultural tractor.
4. Overtaking on the right is strictly prohibited under all circumstances.