When can you overtake on the left?

Answer: C — When the vehicle in front is turning right

Overtaking on the left is permissible when the vehicle in front is preparing to make a right turn. In this situation, it is often safer and more efficient to pass the turning vehicle on the left, as the right side may be obstructed. This rule allows you to maneuver around vehicles that are slowing down or stopping to turn right, thereby keeping traffic flowing smoothly. In this context, the other situations are not appropriate for overtaking on the left. For example, overtaking whenever you feel it is safe could lead to unsafe driving practices and does not follow specific traffic regulations. When a vehicle in front is turning left, it is typically a signal for you to maintain your position and wait. Additionally, while overtaking may be common in traffic jams, it should be done with caution and only when there is enough room and it is clear to do so.