Which three statements are true about the contents of the /etc/ocfs2/cluster.conf configuration file?

Which three statements are true about the contents of the /etc/ocfs2/cluster.conf configuration file?

A.
The heartbeat stanza is required only if local heartbeat mode is enable.

B.
All stanzas must start at the first column and end with a colon.

C.
All parameters must start after a tab.

D.
A blank line must demarcate each stanza.

E.
A blank line must demarcate stanzas and parameters.

F.
All parameters must start after a tab and begin with a colon.