Refer to the exhibit. Host A and Host B are connected to the Catalyst 3550 switch and have been assigned to their respective VLANs. The rest of the 3550 configuration is the default configuration. Host A is able to ping its default gateway， 10.10.10.1， but is unable to ping Host B. Given the output displayed in the exhibit， which statement is true？ （）
- A A separate router is required to support interVLAN routing.
- B VTP must be configured to support interVLAN routing.
- C VLANs 10 and 15 must be created in the VLAN database mode.
- D The global config command ip routing must be configured on the SW1 switch.
- E HSRP must be configured on SW1.
- F Interface VLAN 10 must be configured on the SW1 switch.