Pedestrian traffic is prohibited...
A)on motorways (autopistas), but not on dual carriageways (autovías).
B)on dual carriageways (autovías), but not on motorways (autopistas).
C)on motorways (autopistas) and on dual carriageways (autovías).Correct
The following are prohibited from using motorways (autopistas) and dual carriageways (autovías): pedestrians, animals, animal-drawn vehicles, bicycles, mopeds, and vehicles for persons with reduced mobility.
However, cyclists over 14 years of age may ride along the hard shoulders of dual carriageways (autovías), unless, for justified road safety reasons, it is prohibited by the corresponding signage. Such prohibition shall be complemented by a panel informing of the alternative route.