c.They are home to the world’s busiest deep-sea fishing industry.
Explanation:
East Asia is eastern subregion of Asia and is known for the diversity of fish markets as these nations fish is the main food item, these nations include the indigenous people of china, japan, Korea, and Vietnam and have a total area of 11,839,074 km square. Economies of these countries were agrarian and depended on the water sources for a lot.
