Q4 Single choice Flag Which statement is correct about defining a Route Distinguisher (RD) for a VPN instance on an HP Comware switch? A The RD is only required when the router runs Border Gateway Protocol (BGP) and must match theBGP router ID. B The RD is only required when the router runs Border Gateway Protocol (BGP) and must be unique to that VPN instance. C The RD is always required and must match the switch global router ID. D The RD is always required and must be unique to that VPN instance. Correct answer