What organization is concerned with pollution prevention and energy efficiency, indoor and outdoor air quality, industrial air pollution, pollution from vehicles and engines, radon, acid rain, stratospheric ozone depletion, climate change, and radiation protection?

• A. The Office of Air and Radiation (OAR)
• B. The Environmental Protection Agency (EPA)
• C. The National Institute of Environmental Health Sciences (NIEHS)
• D. The Department of Energy (DOE)

Answer: (A)

The main idea is to identify the office within the Environmental Protection Agency that directly handles air and radiation programs. The Office of Air and Radiation within EPA is responsible for these areas, coordinating programs to improve indoor and outdoor air quality, regulate vehicle emissions, address radon and radiation protection, tackle acid rain, ozone depletion, and climate change, and advance pollution prevention and energy efficiency. The other options don't cover this full scope: a health-science institute focuses on research rather than program management, a department of energy concentrates on energy policy and research, and the EPA as a whole is the parent agency rather than the specific office responsible for these programs.