How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network？（）

• A、It maintains DHCP leases on behalf of subscribers.
• B、It initiates DHCP requests on behalf of subscribers.
• C、It passes DHCP traffic to and from the server;you must configure static host routes.
• D、It passes DHCP traffic to and from the server and inserts host routes into its routing table.