You want to enter a road displaying this road sign. To what does the information "12 t" refer?

This sign indicates a weight limit for vehicles. The "12 t" with the red border means that vehicles with an actual total weight (the current loaded weight including passengers and cargo) over 12 tons are not allowed to enter this road. The weight restriction always applies to the vehicle’s actual weight at the time, not to the gross vehicle weight rating or the empty weight. You correctly selected the right answer. Knowing this helps avoid fines and road damage.