Three Cisco Catalyst switches have been configured with a first-hop redundancy protocol. While reviewing some show commands， debug output， and the syslog， you discover the following information： What conclusion can you infer from this information？（）

• A、VRRP is initializing and operating correctly.
• B、HSRP is not properly exchanging three hello messages.
• C、VRRP is not properly exchanging three hello messages.
• D、HSRP is initializing and operating correctly.
• E、GLBP is not properly exchanging three hello messages. 
• F、GLBP is initializing and operating correctly.