How do improperly set Telnet/SSH parameters effect the configuration of a controller with Cisco WCS?

Refer to the exhibit.

How do improperly set Telnet/SSH parameters effect the configuration of a controller with Cisco WCS?
A. The CLI and GUI management of the controller both fail because Cisco WCS checks these credentials beforeopening a session.
B. The Telnet/SSH username must have sufficient privileges to execute commands in CLI templates.
C. The GUI management of the controller fails because the Cisco WCS uses the Telnet/SSH parameters to login to the controller.
D. The controller remains configured in the Cisco WCS, but no management is possible through GUI from other client browsers.