About Required lighting and the MOT (APK): which statement is WRONG?

Besides the owner/keeper, the driver is ALSO liable, as soon as the motor vehicle is actually driven on the road.
'If visibility is less than 50 metres due to very dense fog or heavy snowfall (NOT in rain!) you may switch on your rear fog light.' In rain the rear fog light stays off, even below 50 m visibility.
✓ A fire extinguisher and a first-aid kit are legally required in the car.
By day with seriously impaired visibility (such as fog) dipped headlights are required, not full beam.

Correct answer: A fire extinguisher and a first-aid kit are legally required in the car.

Explanation

The passenger-car requirements name no fire extinguisher and no first-aid kit. Both are sensible, neither is an inspection requirement

Besides the owner/keeper, the driver is ALSO liable, as soon as the motor vehicle is actually driven on the road. Two liable parties at once, not one
'If visibility is less than 50 metres due to very dense fog or heavy snowfall (NOT in rain!) you may switch on your rear fog light.' In rain the rear fog light stays off, even below 50 m visibility
By day with seriously impaired visibility (such as fog) dipped headlights are required, not full beam. Full beam is moreover forbidden when meeting or following other traffic