A state radiation protection program may involve control of which of the following?

The correct response encompasses a comprehensive approach to radiation protection by indicating that a state radiation protection program involves various aspects that collectively ensure public and environmental safety.

Firstly, the management of x-ray units and radioactive materials is crucial since these sources can pose significant health risks if not properly regulated. Programs typically include licensing, inspection, and enforcement of safety standards for facilities that utilize these sources.

Secondly, waste disposal is another critical aspect of radiation protection. Proper management of radioactive waste is required to prevent contamination and exposure, ensuring that waste is disposed of in a manner that protects both human health and the environment. This can involve strict regulations regarding the transport, storage, and ultimate disposal of radioactive materials.

Lastly, environmental monitoring and surveillance play an essential role in assessing radiation levels in the environment and ensuring compliance with safety standards. This includes activities such as air and water sampling, soil testing, and public health assessments to track any potential radiation exposure to the community.

Thus, recognizing that state radiation protection programs encompass the control of x-ray units, the management of radioactive waste, and diligent environmental monitoring forms a holistic strategy for protecting health and safety from radiation hazards, making 'all of the above' the pivotal choice.