What changes were proposed for the Staples Corner junction as part of the Brent Cross development plan in 2008?

A. Closing the junction to all traffic on weekends
B. Restricting certain turns, including south-bound A5 to west-bound North Circular Road and east-bound North Circular to south-bound A5
C. Adding a new lane for south-bound A5 traffic
D. Removing all traffic lights to improve traffic flow
Answer: 