Which four options can cause this problem?

The customer is using Cisco Unified Intelligence Center on a virtual machine and reports that the license has become invalid.

Which four options can cause this problem? (Choose four.)
A . Time zone was changed.
B . Secondary DNS was changed.
C . Hostname was changed.
D . Number of historical reports exceeded the system limits.
E . Cisco Unified Intelligence Center Publisher is not in service.
F . IP address was changed.
G . Primary NTP server was changed.
H . Number of concurrent real-time reports exceeded the system limits.

Answer: A,C,F,G