You perform the command show spanning-tree interface gi 0/1 and see the output in the following exhibit. Why is this interface not a root port for VLAN 5?

A. This switch has the lowest MAC address in the network.
B. There is another switch with a lower path cost to the root bridge for VLAN 5.
C. The priority for this switch is the lowest in the network.
D. There is a redundant link on this switch to the same network segment for VLAN 5.

B. With RSTP, path cost is the total calculated value of costs along the path to the root bridge. If another switch has a lower path cost to the root bridge for the VLAN, then its port will become the root port and any redundant links will become alternate ports.