Which vehicles cannot drive on a motorway?

Which vehicles cannot drive on a motorway?
A)Motorcycles.
B)Mopeds.Correct
C)Trucks over 3,500 kg.
Bicycles, mopeds, vehicles for persons with reduced mobility, animal-drawn vehicles, personal mobility vehicles and any vehicle that does not reach the minimum speed of 60 km/h are prohibited from driving on motorways and dual carriageways, unless they have express authorisation to do so.
Notwithstanding the provisions of the previous paragraph, cyclists over 14 years of age may ride on the shoulders of dual carriageways, unless prohibited for justified road safety reasons by means of the corresponding signage. Such prohibition shall be supplemented with a panel informing of the alternative route.