Which statements about the fog-light rule are correct according to the book? (multiple answers possible)

In rain you always switch on your dipped beam

In heavy rain with seriously impaired visibility you may also switch on the front fog light

In heavy rain showers the rear fog light may also be on, just like in fog

In very dense fog or heavy snowfall, visibility <50 m, the rear fog light may be on

Explanation

False — trap: fog solution applied to rain. The rear fog light is always prohibited in rain, even in heavy showers (Book p.188).