Can you use the "BUS lane" to overtake?

A)Yes, but I must overtake quickly.
B)Yes, when there are no buses nearby.
C)No, because it is prohibited.Correct
The bus lane is reserved exclusively for the circulation of buses and other expressly authorised vehicles, such as taxis. Its purpose is to speed up public transport. Therefore, passenger cars and other unauthorised vehicles are prohibited from entering it for any manoeuvre, including overtaking.