A special vehicle for road repair or maintenance, when entering a motorway, must use the V-2 signaling light...

A)Only when arriving at the work site.
B)Only at night.
C)From the entry to the motorway.Correct
# Explanation
The V-2 signaling light (flashing yellow light) must be activated **from the very moment the special vehicle enters the motorway**, not when it arrives at the work site. This light serves to warn other drivers about the presence of a vehicle carrying out repair or maintenance work, increasing road safety throughout the entire route.