If you intend to overtake the vehicle in the image, you will take into account that...
A)It is more than 12 metres long.Correct
B)It transports dangerous goods.
C)It is a special vehicle.
The rectangular plate visible on the rear of the bus indicates that it is more than 12 metres long. This is important to bear in mind when overtaking it, as the manoeuvre will take longer than overtaking a smaller vehicle.