A client request includes a network design that ensures all connections between the access layer and distribution layer are active and forwarding traffic at all times. Which design approach achieves this request?

A.	Create a VSS between the two distribution switches and also create a MEC between the VSS and each access layer switch.
B.	Configure HSRP for all VLANs and adjust the hello timer for faster convergence.
C.	Configure Rapid PVST+ and adjust the timers for faster convergence.
D.	Enable backbone fast on the two distribution switches and create a port channel between each access layer switch and both distribution switches.