The largest fish exporting region in the world is

the north-east atlantic region
the north-east pacific region
the north-west pacific region
the south-east asian region

The correct answer is: D. the south-east asian region.

The south-east asian region is the largest fish exporting region in the world, accounting for 20% of global fish exports in 2020. The top five fish exporting countries in the region are Vietnam, Thailand, Indonesia, the Philippines, and Malaysia. These countries export a variety of fish products, including tuna, shrimp, tilapia, and catfish.

The north-east atlantic region is the second largest fish exporting region in the world, accounting for 15% of global fish exports in 2020. The top five fish exporting countries in the region are Norway, Iceland, Denmark, the Netherlands, and the United Kingdom. These countries export a variety of fish products, including salmon, cod, haddock, and herring.

The north-east pacific region is the third largest fish exporting region in the world, accounting for 13% of global fish exports in 2020. The top five fish exporting countries in the region are China, Japan, the United States, Canada, and South Korea. These countries export a variety of fish products, including tuna, salmon, shrimp, and crab.

The north-west pacific region is the fourth largest fish exporting region in the world, accounting for 12% of global fish exports in 2020. The top five fish exporting countries in the region are China, Japan, the United States, Canada, and South Korea. These countries export a variety of fish products, including tuna, salmon, shrimp, and crab.

The south-east asian region is the largest fish exporting region in the world because it has a long coastline and a large population. The region is also home to a number of important fish producing countries, such as Vietnam, Thailand, Indonesia, the Philippines, and Malaysia. These countries have developed strong fish processing and exporting industries.