Refer to the exhibit.
Which two commands ensure that DSW1 becomes root bridge for VLAN 10 and 20? (Choose two)
A . spanning-tree mstp 1 priority 0
B . spanning-tree mst 1 root primary
C . spanning-tree mst vlan 10,20 priority root
D . spanning-tree mst 1 priority 4096
E . spanning-tree mst 1 priority 1
F . spanning-tree mstp vlan 10,20 root primary
Answer: BD