The Network Administrator Creates VLAN 10 and Assigns an IP

The network administrator creates VLAN 10 and assigns an IP address to VLANIF10. When using the command "display ip interface brief", the administrator finds that VLANIF10 is down. What should be done to enable VLANIF10?

A) Use the command "undo shutdown" under the interface view for VLANIF10
B) Assign a physical interface that has either an active of inactive physical state to VLAN 10
C) Assign only a physical interface that has an active physical state to VLAN 10
D) Add an interface that has an active physical state and a trunk port associated with VLAN 10