As a Cisco engineer works. With your experience, how you realize to achieve multiple active uplinks and loop prevention in a Cisco Nexus 5000 Switch, using Ethernet Host Virtualizer?

A.
by PortChanneling uplink ports

B.
by implementing Per-VLAN Spanning Tree

C.
by pinning MAC addresses to specific ports

D.
by tying a server interface to a border interface in the switching fabric