Correct option is A
Correct Answer:(a) Manipur - Nagaland - Meghalaya – Tripura
Explanation:
As per Census 2011, the population density of the states are as follows:
1. Manipur: 115 persons per square kilometer
2. Nagaland: 119 persons per square kilometer
3. Meghalaya: 132 persons per square kilometer
4. Tripura: 350 persons per square kilometer