A network administrator notices that after a company$-$wide shut down, many users cannot connect their laptops to the corporate SSID.

What must be done to permit access in a timely manner?

A$.$ Connect this system as a guest user and then redirect the web auth protocol to log in to the network.

B$.$ Allow authentication for expired certi cates within the EAP$-$TLS section under the allowed protocols.

C$.$ Add a certi cate issue from the CA server, revoke the expired certi cate, and add the new certi cate in system.

D$.$ Authenticate the user's system to the secondary Cisco ISE node and move this user to the primary with the renewed certi cate.