The correct answer is: d) All of the above
The Tea tribes, Bodo, and Mising are all ethnic groups that have historically migrated within the state of Assam and across borders.
The Tea tribes are a group of people who were brought to Assam from other parts of India to work on tea plantations in the 19th century. They come from a variety of ethnic groups, including the Ahom, Kachari, and Naga. The Tea tribes have a long history of migration, both within Assam and across borders. Many Tea tribes people have migrated to other parts of India, such as West Bengal and Tripura, in search of work. They have also migrated to other countries, such as Bangladesh and Myanmar.
The Bodo are an ethnic group that is native to Assam. They have a long history of migration, both within Assam and across borders. The Bodo have traditionally lived in the Brahmaputra Valley, but they have also migrated to other parts of Assam, such as the Barak Valley and the Karbi Anglong district. The Bodo have also migrated to other countries, such as Bhutan and Bangladesh.
The Mising are an ethnic group that is native to Assam. They have a long history of migration, both within Assam and across borders. The Mising have traditionally lived in the Dibrugarh district, but they have also migrated to other parts of Assam, such as the Tinsukia district and the Golaghat district. The Mising have also migrated to other countries, such as Bhutan and Myanmar.
The migration of the Tea tribes, Bodo, and Mising has had a significant impact on the demographics of Assam. The migration of these groups has led to an increase in the population of Assam and has also led to changes in the ethnic composition of the state. The migration of these groups has also had an impact on the economy of Assam. The Tea tribes, Bodo, and Mising have played an important role in the development of the tea industry in Assam.