The correct answer is: d) All of the above
Accessibility and connectivity are important factors in migration patterns because they determine how easy it is for people to move from one place to another. Development projects can also lead to migration, as they can create new jobs and opportunities in certain areas. Changes in land-use patterns can also affect migration, as they can make some areas more or less attractive to live in.
In Arunachal Pradesh, accessibility and connectivity have been improving in recent years due to the construction of new roads and bridges. This has made it easier for people to move around the state, and has led to some migration from rural areas to urban areas. Development projects, such as the construction of dams and power plants, have also been taking place in Arunachal Pradesh in recent years. These projects have created new jobs and opportunities, and have attracted migrants from other parts of India. Changes in land-use patterns, such as the conversion of forests to agricultural land, have also been taking place in Arunachal Pradesh. This has made some areas less attractive to live in, and has led to some migration out of the state.
Overall, accessibility and connectivity, development projects, and changes in land-use patterns are all important factors in migration patterns in Arunachal Pradesh.