What's the reason for the hatched area along the centre of this road? What's the reason for the hatched area along the centre of this road?

• Possible answers:

   
• A. It separates traffic flowing in opposite directions
• B. It marks an area to be used by overtaking motorcyclists
• C. It's a temporary marking to warn of the roadworks
• D. It separates the two sides of the dual carriageway