Aquaculture is the raising of freshwater and marine plants and animals for food. How would a company raising fish best demonstrate good stewardship of natural resources?

(i). They would raise fish with as little pollution as possible.
(ii). They would raise fish as economically as possible.
(iii). They would raise fish from as many species as possible.
(iv). They would raise fish to be as flavorful as possible.
(i).