On the hard shoulder of this dual carriageway, what are you allowed to do?

On the hard shoulder of this dual carriageway, what are you allowed to do?
A)Stopping to talk on a mobile phone.
B)Overtaking on the right.
C)Immobilising the vehicle due to emergency or breakdown.Correct
On dual carriageways and motorways, the hard shoulder is reserved exclusively for stopping due to emergency or breakdown. It is not permitted to stop for reasons other than force majeure, such as to use a mobile phone. Driving or overtaking on the hard shoulder is a prohibited and very dangerous manoeuvre.