Q5
Single choice
Refer to the exhibit.

All four switches run MSTP. Switch_A, Switch_B, and Switch_C are configured with this MSTP information:
- Config name = "Region 1"
- Revision number= 1
- Instance 1 = VLANs 10, 12
- Instance 2 = VLANs 11, 13
- IST instance = VLANs 1-9, 14-4094
Switch_D is configured with this MSTP information:
- Config name = "Region1"
- Revision number= 1
- Instance 1 = VLANs 10, 12
- Instance 2 = VLANs 11, 13, 14, 15
- IST instance = VLANs 1-9, 16-4094
Based on this information, what is the result of this MSTP configuration?