Refer to the exhibit. Which three statements accurately describe this GLBP topology？（）
- ARouter A is responsible for answering ARP requests sent to the virtual IP address
- BIf Router A becomes unavailable， Router B will forward packets sent to the virtual MAC address ofRouter A
- CIf another router were added to this GLBP group， there would be two backup AVGs
- DRouter B is in GLBP listen state
- ERouter A alternately responds to ARP requests with different virtual MAC addresses
- FRouter B will transition from blocking state to forwarding state when it becomes the AVG