In case of traffic congestion on a motorway, may one drive on the hard shoulder?

In case of traffic congestion on a motorway, may one drive on the hard shoulder?
A)Yes.
B)Yes, leaving it at the first exit.
C)No.Correct
As a general rule, it is forbidden to drive on the hard shoulder of a motorway, as well as to stop and park on it.
Exceptionally, when driving for reasons of emergency or breakdown, at an abnormally reduced speed and disturbing traffic, it will be permitted, although they must leave the road at the first exit they find. (The MAM of the vehicle must not exceed 3,500 kg).
Therefore, we are prohibited from driving on the hard shoulder due to traffic congestion.