In the exhibit, the switches have all been powered on at the same time and have the factory
default RSTP configuration.
Which action would ensure that Switch A becomes the root bridge?

A.
On Switch A, issue the set protocols rstp bridge-priority 28k command.

B.
On Switch A, issue the set protocols rstp bridge-priority 36k command.

C.
On Switch C, issue the set protocols rstp bridge-priority 36k command.

D.
On Switch B, issue the set protocols rstp bridge-priority 28k command.

Explanation: