Which of the following description about VRRP is incorrect?

Which of the following description about VRRP is incorrect?
A . VRRP determines the status of each router in the virtual router based on priority
B . If the Master already exists, Backup will also preempt
C . When two routers with the same priority compete for the Master at the same time, compare the size of the interface IP address, and the one with the larger interface address is elected as the Master
D . If the Backup router works in non-preemptive mode, as long as the Master router does not fail, the Backup router will not become the Master router even it is subsequently configured with a higher priority.

Answer: B