When port security is enabled on a Cisco Catalyst switch, what is the default action when the configured maximum number of allowed MAC addresses value is exceeded?

A.
The port remains enabled, but bandwidth is throttled until old MAC addresses are aged out.

B.
The port is shut down.

C.
The MAC address table is cleared and the new MAC address is entered into the table.

D.
The violation mode of the port is set to restrict.