A motor vehicle travelling at night along a sufficiently lit through road...

A)only needs to use the sidelights.
B)does not need to use any lights.
C)must use the dipped headlights and the sidelights.Correct
Every motor vehicle and moped travelling between sunset and sunrise on urban or interurban roads that are sufficiently lit, or at any time of day through tunnels and other road sections affected by the tunnel sign that are sufficiently lit, must have its sidelights on as well as its dipped headlights (short-range lights). When driving, we must always have the sidelights on together with at least one other light (dipped beam, main beam or fog light).