What advantage do aquaponics systems provide for plant growth?

Aquaponics systems are designed to integrate aquaculture (fish farming) with hydroponics (growing plants in water without soil). The significant advantage of this system is that it creates a symbiotic environment where the waste produced by the fish serves as a natural fertilizer for the plants. The plants, in turn, help filter and clean the water for the fish. This process reduces the need for chemical fertilizers while providing nutrient-rich water for plant growth, thereby enhancing plant health and productivity.

The integration of fish and plants also results in more efficient nutrient cycling and reduces water usage compared to traditional farming methods. This mutual dependency helps create a sustainable growing environment, making option B the most fitting choice for highlighting the benefits of aquaponics systems in promoting plant growth.