Refer to the exhibit. Which three statements accurately describe this GLBP topology？（）

Router A is responsible for answering ARP requests sent to the virtual IP address

If Router A becomes unavailable， Router B will forward packets sent to the virtual MAC address ofRouter A

If another router were added to this GLBP group， there would be two backup AVGs

Router B is in GLBP listen state

Router A alternately responds to ARP requests with different virtual MAC addresses

Router B will transition from blocking state to forwarding state when it becomes the AVG