A centralized DHCP server has been setup for customer use. What command is required on the customer Switched Virtual Interface (SVI) to allow clients to receive addresses from this server?

A.	switch(config-if)#ip helper-address
B.	switch(config)#ip helper-address
C.	switch(config-if)#ip dhcp-address
D.	switch(config-if)#ip dhcp-gateway
E.	switch(config-if)#helper-address