If while driving you are surprised by torrential rain...
A)You must accelerate to get through the storm.
B)You must stop in any case, even on the road.
C)You must park in a permitted and safe place, keeping the position lights on.Correct
In torrential rain, visibility is drastically reduced and the risk of aquaplaning increases. For safety, the most prudent thing is to stop in a safe and permitted place, always off the road. It is mandatory to keep the position lights on so the vehicle is visible to other drivers.