The correct option is D To research the lives of the tribal people.
After the death of Komaram Bheem ,the Nizam appointed a famous Austrian anthropologist, Christoph von Fürer-Haimendorf, to research the lives of tribal people. Under the jurisdiction of the Nizam, he was able to undertake some of his best fieldwork among groups such as the Chenchus, Reddis, and Raj Gonds. Many of the tribal populations that Haimendorf researched were lesser known and poorly described at the time.