What is the primary function of disinfectants like phenolics?

Disinfectants like phenolics are primarily designed to kill bacteria and viruses, making option B the correct choice. Phenolic compounds are effective antiseptics and disinfectants because they possess the ability to disrupt the cell walls of microorganisms, thereby inactivating them. This action is crucial in environments where maintaining sanitary conditions is vital to prevent the spread of infection and disease.

While cleaning surfaces is important, disinfectants specifically target pathogens and are used after cleaning to ensure that any remaining microbes are effectively destroyed. Enhancing smell is not a primary function of disinfectants, although some products may have added fragrances. Serving as a soap alternative mischaracterizes the role of disinfectants, as they are not designed to remove dirt and grease like soap does but rather focus on microbial elimination. Therefore, the primary purpose of phenolic disinfectants is their antimicrobial properties, making them effective for sanitizing healthcare settings, salons, and other environments.