Which of the following best describes a fluorocarbon?

The correct response highlights that a fluorocarbon is specifically defined as a chemical compound that contains both fluorine and carbon atoms. This structural composition is what distinguishes fluorocarbons from other types of compounds. Fluorocarbons are significant in refrigeration and air conditioning applications as they are often used as refrigerants due to their stability and efficiency.

Understanding this definition is crucial, as it also underscores the environmental considerations associated with these compounds, particularly concerning their potential impact on global warming and ozone depletion. While natural refrigerants and compounds containing hydrocarbons and nitrogen could have their own uses and implications in the industry, they do not meet the specific criteria that define fluorocarbons. Therefore, recognizing that fluorocarbons fundamentally must include fluorine and carbon solidifies the understanding of their chemical identity and relevance in various applications.