In a Huawei N8500 Cluster System VCS Error Information Is

In a Huawei N8500 cluster system VCS Error information is stored in which of the following log files? (Multiple choice)

A) / var / log / messages
B) / var / log / hima_message
C) /var/VRTSvcs/log/engine_A.log
D) / var / log / warn