Refer to the exhibit.
Which statement describes the result if a switch that is running PVST+ is added to this network?
A . Spanning tree is disabled attomatically on the network
B . Spanning tree contines to operate in Rapid PVST+ on DSW2 and the new switch operates in PVST+
C . Both switches operate in the PVST+ mode
D . Both switches operate in the Rapid PVST+ mode
Answer: B