The correct answer is: d) All of the above.
Immigration to Mizoram from neighboring countries is often driven by a combination of economic opportunities, political or social unrest, and environmental factors.
Economic opportunities: Mizoram is a relatively poor state in India, and many people from neighboring countries come to Mizoram in search of better economic opportunities. The state has a growing economy, and there are many jobs available in the manufacturing, construction, and service sectors.
Political or social unrest: In recent years, there has been a lot of political and social unrest in some of the neighboring countries of Mizoram. This has led to many people fleeing their homes and seeking refuge in Mizoram.
Environmental factors: Mizoram is a beautiful state with a lot to offer in terms of natural beauty. However, the state is also prone to natural disasters such as floods and landslides. These natural disasters can displace people from their homes and force them to seek refuge in other parts of the country.
In conclusion, immigration to Mizoram from neighboring countries is often driven by a combination of economic opportunities, political or social unrest, and environmental factors.