High beam must be replaced by low beam...
A)when driving on a motorway or a dual carriageway.
B)when there is fog.
C)when there is a possibility of dazzling other road users.Correct
Long-range lighting must be replaced by short-range lighting as soon as there is a possibility of dazzling other users of the same road or any other road, and especially drivers of vehicles travelling in the opposite direction — and even if those drivers do not comply with this requirement, we must not restore the high beam until we have passed them.