If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）

• A、A copy of the frame is forwarded out all switch ports other than the port the frame was received on.
• B、The frame is transmitted on the native VLAN.
• C、The switch sends a NACK segment to the frame’s source MAC address.
• D、The frame is dropped.