On a road with one lane in each direction of travel, is a driver allowed to overtake several vehicles at once?

On a road with one lane in each direction of travel, is a driver allowed to overtake several vehicles at once?
A)No, in no case.
B)Only if they can return to the right without causing danger should they encounter oncoming vehicles.Correct
C)Yes, provided they overtake large vehicles.
No driver may overtake several vehicles unless they are completely sure that, should another vehicle appear travelling in the opposite direction, they can move back to the right without causing harm or endangering any of the overtaken vehicles. Unless overtaking on a roadway with more than one lane in their direction, where they may remain in the lane already used, provided they do not disturb those travelling behind.
If completely sure that the overtaking can be carried out without endangering any user, it will be permitted.