Among the seafood products, which product have the highest total production of the production?
seafood product refers to CategoryName = 'Seafood'; product refers to ProductID; highest total production refers to max(add(units in stock, units on order))
SELECT T1.ProductName FROM Products AS T1 INNER JOIN Categories AS T2 ON T1.CategoryID = T2.CategoryID WHERE T2.CategoryName = 'Seafood' ORDER BY T1.UnitsInStock + T1.UnitsOnOrder DESC LIMIT 1