Answer:
d. All of the above
Step-by-step explanation:
A buyer who is interested in conserving energy would want all of the mentioned features in a house: dual or triple-glazed windows, Energy Star appliances, and increased insulation in walls and roofs. Dual or triple-glazed windows have multiple layers of glass with insulating gas in between, which helps to reduce heat transfer and improve energy efficiency by minimizing heat loss or gain through the windows. This can lead to lower energy consumption for heating and cooling.Energy Star appliances are certified by the Environmental Protection Agency (EPA) to meet strict energy efficiency standards. These appliances are designed to use less energy while delivering the same or better performance compared to standard appliances. Using Energy Star appliances can significantly reduce energy consumption and utility costs.Increased insulation in walls and roofs helps to minimize heat transfer between the interior and exterior of a house. Good insulation acts as a thermal barrier, reducing the need for heating and cooling systems to work harder to maintain a comfortable indoor temperature. This results in lower energy usage and improved energy efficiency.