What is the cause of this error?

Refer to the exhibit.

The ClearPass Event Viewer displays an error when a user authenticates with EAP-TLS to ClearPass through an Aruba Controller Wireless Network.
What is the cause of this error?
A. The controller’s shared secret used during the certificate exchange is incorrect.
B. The NAS source interface IP is incorrect.
C. The client sent an incorrect shared secret for the 802.1X authentication.
D. The controller used an incorrect shared secret for the RADIUS authentication.
E. The client’s shared secret used during the certificate exchange is incorrect.

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