Questions: wastes are managed with treatment plants, storage sites, and recycling.

The answer is the third one (or C): Hazardous.

Here's why:

• Hazardous: Hazardous wastes require specialized treatment plants, secure storage sites, and specific recycling processes due to their potential risks to human health and the environment.
• Biodegradable: Biodegradable wastes naturally decompose, so treatment plants (as primary management) and storage sites are not the main solutions. Composting is a more appropriate solution.
• Organic: While some organic wastes might be processed in treatment plants (e.g., wastewater treatment), it is not the primary method for all organic wastes. Composting and anaerobic digestion are also common. Furthermore, not all organic wastes require the level of caution associated with storage sites.

Therefore, the most appropriate answer is hazardous wastes.