Which of the control lights visible in the illustration informs you that the running lights are enabled?

Green warning light C shows that the sidelights (position lights) are on: two small lamps facing in opposite directions, with rays pointing outwards. It symbolises the lights at the front and rear of the vehicle, which do not light the road but show others that the car is stationary or moving.

Warning light A with two green arrows means the indicators, and B, that is, a lamp with diagonal rays crossed by a wavy line, means the front fog lights. Sidelights are used when stopping and parking in conditions of insufficient visibility; while driving you always need dipped headlights or daytime running lights.

Legal basis: Art. 51 para. 1 and Art. 52 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)