On a motorway or dual carriageway, can the central reservation be used in any case?
A)No, never.
B)Yes, to overtake when the lanes are occupied.
C)Yes, to immobilise the vehicle in an emergency when it is not possible to do so on the right shoulder.Correct
# Explanation: Use of the Central Reservation on Motorways
The central reservation is prohibited as a normal driving area, but there is an important exception: **it can be used to immobilise the vehicle in an emergency when it is impossible to stop it on the right shoulder**. This is a safety measure to prevent a vehicle with serious mechanical problems from being stranded in a driving lane, endangering other drivers.