This Act establishes a systematic, comprehensive, and ecological solid waste management program intended to protect the public's health and the environment. Which Act is it?

The correct answer is D, Republic Act No. 9003, also known as the Ecological Solid Waste Management Act of 2000. This legislation specifically focuses on creating a structured and comprehensive approach to solid waste management in the Philippines. It aims to safeguard public health and the environment through the establishment of waste segregation, recycling, and appropriate disposal methods.

The Act emphasizes the need for local government units to create their own waste management plans that align with national policies, thereby promoting ecological integrity and citizen participation. It also champions the reduction of waste generation at the source, thereby fostering a sustainable environment.

Although the other Acts listed address important environmental aspects, they do not specifically target solid waste management in the same systematic way as Republic Act No. 9003. For instance, the Toxic Substances, Hazardous, and Nuclear Waste Control Act of 1990 primarily focuses on regulating hazardous waste, while the Philippine Clean Water Act of 2004 revolves around water quality management, and Republic Act No. 9275 concerns the management of water pollution.