Refer to the exhibit. The ACS RADIUS Authentication Report shows the output for a failed client authentication. Which action can resolve this issue? 

Answer options:

A. Re-generate the client certificate, which is expired.
B. Install the complete ACS certificate CA chain on the client operating system.
C. Re-generate the local ACS certificate, which was issued by an unknown CA.D. Import the complete client certificate CA chain on the ACS.

D