What is a key benefit of implementing the bgp dmzlink-bw command?

A.
establishes a secure BGP link between eBGP and iBGP peers

B.
enables the unequal cost path load balancing feature for external BGP links

C.
allows BGP to use link bandwidth as a metric when computing best route selection

D.
increases BGP security by dynamically allocating community strings to eBGP routes