Refer to the exhibit.
The network administrator enables DHCP snooping globally and on VLAN 2. An additional step is mandatory for DHCP snooping to operate correctly and for clients to receive DHCP settings.
What is the additional mandatory step?
A . Define trk1 as a trusted DHCP port.
B . Define an authorized DHCP server.
C . Enable ARP protection.
D . Define edge ports as untrusted DHCP ports.
Answer: D