What is the function of this command? switch(config-if)# switchport port-security mac-address sticky

[answerhappygod]

What is the function of this command?
switch(config-if)# switchport port-security mac-address sticky

A. It allows the switch to restrict the MAC addresses on the switch port, based on the static MAC addresses configured in the startup configuration.
B. It allows the administrator to manually configure the secured MAC addresses on the switch port.
C. It allows the switch to permanently store the secured MAC addresses in the MAC address table (CAM table).
D. It allows the switch to perform sticky learning, in which the dynamically learned MAC addresses are copied from the MAC address table (CAM table) to the startup configuration.
E. It allows the switch to dynamically learn the MAC addresses on the switch port, and the MAC addresses will be added to the running configuration