The correct answer is: a) Internal migration.
Internal migration is the movement of people within a country’s borders. In this case, the people are moving from rural areas to urban areas within Andhra Pradesh. This is a common type of migration, as people often move to urban areas in search of better job opportunities and a higher standard of living.
International migration is the movement of people across international borders. This type of migration can be for a variety of reasons, such as economic opportunity, political asylum, or family reunification.
Emigration is the movement of people out of a country. This can be for a variety of reasons, such as economic opportunity, political asylum, or family reunification.
Seasonal migration is the movement of people to a different location for a specific period of time, usually to work. This type of migration is common in agricultural areas, where workers may move to different farms during different seasons.