Which two Tcl scripts make up the B-ACD?（）

A.A special hybrid license is required. 
B.The Cisco Unity Express license must be changed. 
C.The Cisco Unity Express license does not need to be changed. 
D.The license file names are identical, which allows them to be interchanged as long as the module itself is not being upgraded.

A.write permission on the directory 
B.read and write permission on the directory 
C.read and write permission on the Cisco Unity Express router 
D.match the backup Cisco Unified CallManager Express router User ID 
E.match the Cisco Unified CallManager Express Administration User ID 
F.read and write permission on the Cisco Unified CallManager Express router