It is not permitted to use the high beam when...

A)the low beam is switched on.
B)the position light is switched on.
C)it could dazzle other road users.Correct
The use of high beam or main beam headlights is prohibited when there is a possibility of dazzling other drivers or road users on the same road, or on any other road, travelling in the opposite direction, or drivers of vehicles travelling in the same direction. In the event of possible dazzling, the high beam or main beam must be replaced by the low beam or dipped headlight. It is also prohibited to use the high beam: - In built-up areas. - When the vehicle is stopped or parked.