Refer to the exhibit.In the event of a loss of connectivity from the Cisco Access Gateway to the expansion modules on th

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Refer to the exhibit.In the event of a loss of connectivity from the Cisco Access Gateway to the expansion modules on the CAN bus, with DC power still connected, what will happen if an access card was presented to a card reader that is connected to one of the Reader Modules?

A. Reader Module will first try to authenticate the user by attempting to contact the Cisco Access Gateway. Because connectivity is lost, Reader Module will not be able to authenticate, and no access will be granted.
B. Reader Module will first try to authenticate the user by attempting to contact the Cisco Access Gateway. Because connectivity is lost, Reader Module will fall back to its locally cached credentials and grant access if the card is valid.
C. Reader Module will first try to authenticate the user using its locally cached credentials. If the credentials are in the local database, access will be granted. If the credentials are not present, Reader Module will attempt to contact the Cisco Access Gateway, time out, and deny access to the user.
D. Reader Module will sound an audible alarm.