Refer to the exhibit.
What might be the reason of these failed attempts in ACS?
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A.
The wrong shared secret is configured on the AAA client or ACS.
B.
The request is coming from a AAA client that is configured only for RADIUS on ACS.
C.
The request is coming from a AAA client that is configured only for TACACS+ on ACS.
D.
The PC that is trying to access the device is outside the known subnet.