Exhibit SW1#show spanning-tree vlan 200 VLAN200 Spanning tree enabled protocol iee eRoot ID Priority 32968 Address 000c.ce29.ef00 Cost 19 Port 2 （FastEthernet0/2） Hello time 10 Sec Max Age 20 sec Forward Delay 30 sec  Bridge ID Priority 32968 （priority 32768 sys-id-ext 200） Address 000c.ce2a.4180 Hello Time 2 sec Max Age 20 Sec Forward Delay 15 sec  Interface Role Sts Cost PrioNbr Type Fa0/2 Root FWD 19 128.2 P2p Fa0/3 Altn BLK 19 128.3 P2p   Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statementsabout the STP process for VLAN 200 are true？（）

• A、BDPUs will be sent out every two seconds
• B、The time spent in the listening state will be 30 seconds
• C、The time spent in the learning state will be 15 seconds
• D、The maximum length of time that the BPDU information will be saved is 30 seconds
• E、This switch is the root bridge for VLAN 200
• F、BPDUs will be sent out every 10 seconds