Which statement correctly describes Cisco IOS Software?

Which statement correctly describes Cisco IOS Software?

A.
Newer Cisco routers support only Cisco IOS Software version 15 and above.

B.
Cisco IOS-XE Software is a subset of the Cisco IOS Software.

C.
Only Cisco Channel Partners can issue Cisco IOS license keys.

D.
A universal Cisco IOS image includes all software features; enabled features
depend on license keys.

E.
Cisco Business Edition 6000 is integrated into Cisco IOS Software.