这是正确的选项
A. Catalyst_A is load sharing traffic in VLAN 50.
B. Hosts using the default gateway address of 192.168.1.2 will have their traffic sent to Catalyst_A.
C. The command standby 1 preempt was added to Catalyst_A.
D. Hosts using the default gateway address of 192.168.1.1 will have their traffic sent to 192.168.1.11 even after Catalyst _A becomes available again.