The correct answer is: b) Hilsa.
Hilsa is a major commercial catch in Andhra Pradesh. It is a type of herring that is found in the Bay of Bengal and the Arabian Sea. Hilsa is a popular fish in India and Bangladesh, and it is often used in curries and other dishes.
Pomfret is another type of fish that is found in the Bay of Bengal. It is a popular fish in India and other parts of Asia, and it is often used in curries and other dishes. However, pomfret is not as popular as hilsa in Andhra Pradesh.
Tuna is a type of fish that is found in the Pacific Ocean. It is a popular fish in the United States and other parts of the world, and it is often used in sushi and other dishes. However, tuna is not as popular as hilsa in Andhra Pradesh.
Mackerel is a type of fish that is found in the Atlantic Ocean. It is a popular fish in Europe and other parts of the world, and it is often used in fish and chips and other dishes. However, mackerel is not as popular as hilsa in Andhra Pradesh.