Which statement is true?

Which statement is true?

A.
A Cisco ISE Advanced license isperpetual in nature.

B.
A Cisco ISE Advanced license can be installed on top of a Base and/or Wirelesslicense.

C.
ACisco ISE Wirelesslicense can be installed on top of a Base and/or Advancedlicense.

D.
A Cisco ISE Advanced license can be used without any Base licenses.