The Prescott Shovel Company wants to upgrade its Cisco Unity Express from a Cisco Unified CallManager Express initegration to a Cisco Unified CallManager intergration.
Which statement is true?

A.
The Cisco Unity Express license does not need to be changed

B.
The Cisco Unity Express license must be changed

C.
A special hybrid license is required

D.
The License file names are identical, which allows them to be interchanged as long as the module itself is not being upgraded