Final answer:
Both energy conservation and energy efficiency contribute to saving money and allowing more time to develop clean renewable energy resources. (option c is correct).
Step-by-step explanation:
Regarding the question of which statements are true concerning energy conservation and energy efficiency, the correct answer is c. Both a and b are correct. Energy conservation and energy efficiency are two approaches to reducing energy consumption. Energy conservation involves reducing energy use through behaviors such as turning down thermostats or driving less.
Energy efficiency pertains to using technology that requires less energy to perform the same function, such as compact fluorescent light bulbs that produce more light with less energy than incandescent bulbs.
Both energy conservation and energy efficiency help save money on energy costs and buy time for the development of clean renewable energy resources.
Recognizing the dual benefits of cost savings and creating a transition period for the advancement of renewable energy, option c accurately captures the positive outcomes associated with both energy conservation and energy efficiency.