Regarding the TC terminal access security authentication process in FusionAccess, which of the following descriptions is incorrect?

Regarding the TC terminal access security authentication process in FusionAccess, which of the following descriptions is incorrect?
A . After the switch detects the authentication request sent by the TC, it sends the authentication information to the AD server for processing through the Radius protocol.
B . TC after the certificate is detected, it will automatically switch to initiate the EAP-TLS of 802.1x two-way certificate authentication.
C . The certificate on the TC is issued from the CA based on the TC information.
D . After the TC is powered on, it will check whether it has a certificate, if not, it will automatically apply for a certificate from TC

Answer: C