Which boot argument toggles between 7-Mode and Cluster-Mode configurations?

A.
bootarg.init.boot_gx

B.
bootarg.init.boot_7-mode

C.
bootarg.init.boot_cluster-mode

D.
bootarg.init.boot_clustered

Explanation:
http://www.ontap8.com/how-to-convert-a-data-ontap-node-from-one-operating-modeto-the-other/