Which file should you look at first?

You are attempting to troubleshoot an event that should have made an entry into the
messages log. This event happened about two weeks ago. Which file should you look at
first?

A.
/var/adm/messages.3

B.
/var/adm/messages

C.
/var/adm/messages.0

D.
/var /adm/messagas.1

E.
/var/adm/messages.2