What is a potential health hazard associated with the decomposition of CFCs?

The correct choice highlights a significant health concern associated with the decomposition of chlorofluorocarbons (CFCs). When CFCs are exposed to high temperatures or other conditions that facilitate their breakdown, they can produce harmful byproducts, including toxic gases such as hydrogen chloride, carbon monoxide, and phosgene. Inhalation of these gases can lead to serious respiratory issues and other health problems, making it crucial for technicians to properly handle and dispose of CFCs to mitigate these risks.

While UV radiation exposure, allergic reactions, and the option of having no related health hazards are important health and safety considerations in various contexts, they do not directly relate to the hazardous effects stemming from the decomposition of CFCs in the same way inhalation of toxic gases does.