Is it permitted to drive through a through-road (travesía) with the fog lights on under normal visibility conditions?
A)No, because they are prohibited on through-roads.
B)Yes.
C)No.Correct
If the vehicle has fog lights, their use is permitted, both day and night, on urban or interurban roads when visibility is significantly reduced by fog, snowfall, heavy rain, clouds of smoke or dust, or any similar circumstance.
They may also be used on narrow roads (carriageways of 6.5 m or less) marked with signs indicating a succession of dangerous bends close together.
If it is not for the reasons described, it is prohibited to use them.