Historically, Mizo society was organized into:

Option a) is incorrect because Mizo society was not organized into large centralized kingdoms. There were a number of different chiefdoms, but they were not united under a single ruler.

Option c) is incorrect because Mizo society was not organized into egalitarian communes. The chiefs had more power than the ordinary people, and they were not elected by the people.

Option d) is incorrect because British-style administrative districts were not established in Mizoram until the 19th century.