What does this danger sign warn of?
A)The proximity of a roadworks section with slow-moving traffic.
B)The proximity of a section where it is compulsory to switch on fog lights.
C)The proximity of a section with frequent loss of visibility due to fog, rain, snow, smoke or other factors.Correct
This sign warns the driver that they are approaching an area where visibility is frequently reduced by atmospheric or environmental conditions such as fog, heavy rain, snow or smoke. Its purpose is for the driver to reduce speed and increase caution. It does not refer to roadworks, nor does it directly require the use of fog lights, although doing so may be advisable depending on the situation.