The correct answer is: b) Seasonal/temporary
Migration from Bihar is often seasonal/temporary, as people move to other parts of India in search of work during the agricultural off-season. This type of migration is often circular, with people returning to their home villages after the harvest.
Option a) Permanent migration is less common, as people are more likely to stay in their home villages if they have access to land and other resources. However, permanent migration does occur, particularly among young people who are looking for better opportunities in other parts of India.
Option c) Circular migration is a type of migration in which people move back and forth between two or more places. This type of migration is common among people who are looking for work or education opportunities.
Option d) International migration is less common among people from Bihar, as the state is located in the interior of India. However, some people do migrate to other countries, such as the United States, in search of better opportunities.