Refer to the exhibit. The entire Marketing-SW1 MAC address table is shown here: What does the switch do when PC-4 sends a frame to PC-1?

Refer to the exhibit. The entire Marketing-SW1 MAC address table is shown here: What does the switch do when PC-4 sends a frame to PC-1?

A. It performs a lookup in the MAC address table and discards the frame due to a missing entry. B. It maps the Layer 2 MAC address to the Layer 3 IP address and forwards the frame. C. It inserts the source MAC address and port into the table and forwards the frame to PC-1. D. It floods the frame out of all ports except on the port where PC-1 is connected.