You have configured the Odyssey Access Client with a profile which has the "Disable Server Verification" setting cleared.What will be the result if the device certificate on the MAG Series device has expired and the user attempts to authenticate?（）

• A、The user will be instructed to call the network administrator.
• B、The user will fail authentication.
• C、The user will be prompted to install a new device certificate on the MAG Series device.
• D、The user will successfully authenticate and have full network access.