The question asks to match the tribal groups listed in List-I with the states where they are predominantly located in List-II.

Option 1 states that the Reang tribe is predominantly located in Arunachal Pradesh, the Dimasa tribe in Nagaland, the Konyak tribe in Tripura, and the Mishmi tribe in Assam.

Option 2 states that the Reang tribe is predominantly located in Arunachal Pradesh, the Dimasa tribe in Assam, the Konyak tribe in Nagaland, and the Mishmi tribe in Assam.

Option 3 states that the Reang tribe is predominantly located in Tripura, the Dimasa tribe in Nagaland, the Konyak tribe in Tripura, and the Mishmi tribe in Arunachal Pradesh.

Option 4 states that the Reang tribe is predominantly located in Tripura, the Dimasa tribe in Assam, the Konyak tribe in Nagaland, and the Mishmi tribe in Arunachal Pradesh.

The correct answer is option 4, which matches the Reang tribe with Tripura, the Dimasa tribe with Assam, the Konyak tribe with Nagaland, and the Mishmi tribe with Arunachal Pradesh.