Refer to the exhibit.
Why was this message received?
A.
No VTY password has been set.
B.
No enable password has been set.
C.
No console password has been set.
D.
No enable secret password has been set.
E.
The login command has not been set on CON 0.
F.
The login command has not been set on the VTY ports.
Explanation: