What are two features of the DHCP relay agent? (Choose two.)

What are two features of the DHCP relay agent? (Choose two.)

A. assigns DNS locally and then forwards request to DHCP server B. minimizes the necessary number of DHCP servers C. permits one IP helper command under an individual Layer 3 interface D. is configured under the Layer 3 interface of a router on the client subnet E. allows only MAC-to-IP reservations to determine the local subnet of a client