Which three actions would be helpful in determining the cause of a node reboot?

A.
looking for messages such as “Oracle CSSD failure. Rebooting for cluster integrity” in
/var/log/messages

B.
using the crsctl command to view tracing information

C.
inspecting the ocssd log for “Begin Dump” or “End Dump” messages

D.
inspecting the database alert log for reboot messages

E.
determining the time of the node reboot by using the update command and subtracting
the up time from the current system time