Can we make a stop while driving on a motorway?

Can we make a stop while driving on a motorway?
A)No, on the motorway we cannot stop under any circumstances.
B)Yes, but we must use the areas specially designated for it.
C)Yes.Correct
A detention is the involuntary immobilisation by the driver due to an emergency, traffic needs or to comply with the rules or signs.
Therefore it is possible to make a stop on a motorway. It may happen that we encounter a traffic jam, our vehicle breaks down, we feel unwell, etc.