What is the purpose of using a disinfectant?

The purpose of using a disinfectant is to kill germs on surfaces and objects. Disinfectants contain chemical agents specifically formulated to eliminate harmful microorganisms, including bacteria, viruses, and fungi, which can lead to infections and illnesses if allowed to thrive on surfaces. By effectively reducing the number of pathogens, disinfectants help create a safer environment, particularly in settings like homes, healthcare facilities, and public spaces, where the risk of transmission of infectious diseases is a concern.

While cleaning surfaces and removing visible dirt is an important step in maintaining hygiene, it does not necessarily eliminate germs. Similarly, while disinfectants can play a role in reducing the overall frequency of illnesses, their primary function is centered on germicidal activity rather than illness reduction directly. Treating wounds and infections involves different products and methods entirely, focusing more on the individual rather than the environment. Therefore, the central role of a disinfectant is in its ability to kill germs, making option B the correct choice.