Which statement about the Cisco Unity Express default AutoAttendant is true?

Which statement about the Cisco Unity Express default AutoAttendant is true?

A.
The defaultAutoAttendant must be enabled during the Initialization Wizard process otherwise
voice-mail services will not function.

B.
Enabling the defaultAutoAttendant is not mandatory during the Initialization Wizard process.

C.
The defaultAutoAttendant is enabled by default with the exception of the prompts that must be
recorded via AvT.

D.
The defaultAutoAttendant cannot be used as is, and it must be customized for the particular
environment it will be used in.

Explanation: