The formation of new states like Meghalaya, Mizoram, and Arunachal Pradesh was a result of:

The correct answer is: d) All of the above.

The formation of new states like Meghalaya, Mizoram, and Arunachal Pradesh was a result of the following factors:

• Reorganization of the Northeast region: The Northeast region of India is a diverse region with a large number of ethnic groups. In the early 1970s, the Indian government decided to reorganize the region into smaller states in order to better address the needs of the different ethnic groups. This led to the formation of new states like Meghalaya, Mizoram, and Arunachal Pradesh.
• Demands for greater autonomy: The ethnic groups in the Northeast region have long demanded greater autonomy from the central government. The formation of new states was seen as a way to give these groups more control over their own affairs.
• Border disputes: The Northeast region is also home to a number of border disputes between India and its neighbors. The formation of new states was seen as a way to resolve these disputes and to better secure the region’s borders.

The formation of new states in the Northeast region has had a significant impact on the region. It has led to greater autonomy for the ethnic groups, it has helped to resolve border disputes, and it has improved the security of the region.