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.