On Switch 5, which command would configure VLAN 5 as root?

On Switch 5, which command would configure VLAN 5 as root?
A . switch5#spanning-tree vlan 5 priority 0
B . switch5(config)#spanning-tree vlan 5 priority 61440
C . switch5(config)#spanning-tree vlan 5 root
D . switch5(config)#spanning-tree vlan 5 priority 0
E . switch5(config-if)#spanning-tree rootguard

View Answer

Answer: D