Which statement is true about DHCP snooping on the Cisco Nexus 7000 platform?

Which statement is true about DHCP snooping on the Cisco Nexus 7000 platform?

A.
DHCP snooping cannot be enabled globally and on a per-VLAN basis.

B.
By default, DHCP snooping is disabled globally and on all VLANs.

C.
You can enable DHCP snooping on a single VLAN only.

D.
For DHCP snooping to function properly, all DHCP servers must be connected to the device
through untrusted interfaces.