Which of the following was a common use for chlorofluorocarbons (CFCs)?

Chlorofluorocarbons (CFCs) were widely used as refrigerants in air conditioning units and refrigerators due to their effective heat absorption properties and stability. Additionally, they served as propellants in aerosol spray cans, facilitating the release of products such as deodorants, hair sprays, and various household cleaners. This dual functionality made CFCs particularly popular in the 20th century before concerns about their environmental impact, particularly their contribution to ozone layer depletion, prompted a significant reduction in their use. The context of their application in refrigeration and aerosol products highlights their role in everyday life and industrial processes.