A network administrator attempts to create a loopback interface on an HP Comware switch, and it
fails. These are the commands the network administrator issues to do this.
[Comware] interface loopback 2
[Comware-Loopback2] ip address 172.18.20.1 255.255.255.0
What is the problem with the proposed configuration/

A.
Only HP ProVision switches support loopback interface

B.
Loopback IP addresses must be in the 10.x.x.x subnet ranges

C.
Only one loopback is supported in Comware Loopback2 cannot be configured

D.
Loopback interface on Comware must use 32-bit marks