Which of the following describes the Department of Energy’s functions?

• A. Creates a US energy policy that makes sure we have access to affordable energy resources; regulates petroleum, coal, natural gas, solar, wind, and nuclear energy resources; promotes energy saving; educates the public; regulate energy companies and cost
• B. Oversees public healthcare
• C. Manages the postal service
• D. Regulates telecommunications

Answer: (A)

The main idea being tested is the breadth of the Department of Energy’s work in shaping and managing the nation’s energy landscape. The best choice captures how the department develops national energy policy, oversees programs related to a wide range of energy resources (like fossil fuels, renewables, and nuclear), promotes energy efficiency and saving, and communicates with the public about energy issues. Those elements reflect DOE’s role in coordinating energy strategy, advancing research and technology, and informing citizens about energy matters. The other options point to responsibilities of other parts of the government—healthcare, the postal service, and telecommunications—so they don’t fit the department’s mission.