Which of the following statements are correct regarding VRRP advertisement message?

Which of the following statements are correct regarding VRRP advertisement message?
A . VRRP has two kinds of advertisement message, one is sent by Master, the other is sent by Slave.
B . VRRP has one kind of advertisement message which is sent by Master.
C . VRRP has one kind of advertisement message which is sent by Slave.
D . VRRP has two kinds of advertisement message, one is used for Master election, the other one is used in stable network after Master election.

Answer: B