This sign...
A)prohibits trucks from overtaking except two-wheeled motorcycles.
B)prohibits all trucks from overtaking any vehicle.
C)prohibits trucks with a maximum authorised mass exceeding 3,500 kg from overtaking motor vehicles travelling on the road.Correct
The sign prohibits trucks whose maximum authorised mass exceeds 3,500 kilograms from overtaking motor vehicles travelling on the road, even when such a manoeuvre does not involve encroaching on the area reserved for oncoming traffic. The prohibition applies from the point where the sign is located up to the next "End of overtaking prohibition" or "End of prohibitions" sign.
Other vehicles may overtake any vehicle, including the truck.