What is one means of conserving energy? 

A)  using high-quality energy whenever possible 
B)  increasing the efficiency of equipment 
C)  recycling energy 
D)  using wind turbines

Increasing the efficiency of equipment is a proven means of conserving energy. This can be achieved through regular maintenance, using energy-efficient products, and upgrading outdated equipment. Using high-quality energy whenever possible may not be feasible or practical in all situations. Recycling energy, while possible in some cases, requires specialized equipment and infrastructure. Using wind turbines is a form of renewable energy generation but may not always be the most efficient or cost-effective solution for energy conservation.