Given the above diagram and assuming that STP is enabled on all switch devices，  which two statements are true？（）

A.DSW11 will be elected the root bridge.

B.DSW12 will be elected the root bridge.

C.ASW13 will be elected the root bridge.

D.P3/1 will be elected the nondesignated port.

E.P2/2 will be elected the nondesignated port.

F.P3/2 will be elected the nondesignated port.