Explanation:

Second option is correct.

Reang or Bru Tribes-

•  Riang or Bru  are one of the 21 scheduled tribes of the Indian state of Tripura.
•   The Bru are the second most populous tribe of Tripura after the Tripuris.
•  The correct nomenclature for this ethnic group is actually Bru although the name Reang was accidentally incorporated by the Indian government during a census count.
•  The Bru can be found all over the Tripura state in India.
•  However, they may also be found in Mizoram, Assam, Manipur and Bangladesh.