Is the vehicle driving in the additional lane doing so correctly?
A)Yes.Correct
B)No, because it does not have the dipped headlights on.
C)No, because it is on the shoulder line.
The additional lane is the one in the middle between the other two lanes and is delimited from the opposite direction by cones. The vehicle driving in that lane, like all others using that road, must have the dipped headlights on both day and night. The maximum speed on these lanes is limited to 80 km/h and the minimum to 60 km/h.
The other 2 vehicles are driving incorrectly since they do not have their lights on, but the question refers only to the vehicle driving in the additional lane, the central vehicle.