What cloud be the possible issue?

Refer to the exhibit.

A customer has opened a case with Cisco TAC reporting an issue that one of the Windows client supposed to logion to the network using MAB is no longer able to access any allowed resources. Looking at the configuration of the switch.

What cloud be the possible issue?
A . CoA configuration is missing
B . Dot1x should be globally disabled for MAB to work
C . There is an Issue with the DHCP pool configuration
D . incorrect CTS configuration on the switch
E . Switch configuration is properly configured and the issue is on the radius server
F . AAA authorization is incorrectly configured
G . the VLAN configuration is missing on the authentication port

Answer: A