Refer to the exhibit. Which two commands ensure that DSW1 becomes the root bridge for VLAN 10 and 20? (Choose two.)
A. spanning-tree mst 1 priority 4096 Most Voted
B. spanning-tree mst 1 root primary Most Voted
C. spanning-tree mst vlan 10,20 priority root
D. spanning-tree mst 1 priority 1
E. spanning-tree mstp vlan 10,20 root primary
Correct Answer: AB