Concept:The Munda tribe is one of the oldest aboriginal groups in India, originally inhabiting the Chota Nagpur plateau region.
Explanation:The Mundas are indigenous to the Chhotanagpur area, which covers parts of present-day Jharkhand.
They belong to the Austro-Asiatic language family and are also known as Kolarian.
Their name means 'headman of a village', a term given by outsiders.
Munda society is patriarchal and endogamous (marrying within the community).
Historically, they have lived in the northeastern states of Assam, Jharkhand, Odisha, and West Bengal.
However, their original homeland and the region where they are most prominently associated is Chhotanagpur.
Thus, among the given options, the Munda tribe lived in the Chhotanagpur region.
Answer:Option A – Chhotanagpur