The syntax of the procmail configuration file is?
A.
:0[flags][:[lockfile]] [* condition] action
B.
[* condition] action :0[flags][:[lockfile]]
C.
:0[flags][:[lockfile]] [* condition] action
D.
:0[flags][:[lockfile]]:[* condition] action
E.
:0[flags][:[lockfile]]:[* condition]:action
Explanation: