A. Airborne: Airborne precautions are used for diseases that can be transmitted through airborne droplet nuclei, such as tuberculosis or measles. Hepatitis C is not transmitted through the air, making airborne precautions unnecessary for this condition. B. Droplet: Droplet precautions are required for infections spread through respiratory droplets, such as influenza or meningitis. Hepatitis C is not spread via respiratory droplets, so droplet precautions are not applicable. C. Contact: Contact precautions are necessary for infections that can be transmitted through direct contact with the patient or contaminated surfaces, such as MRSA or C. difficile. While contact precautions may be applied in specific situations involving hepatitis C, they are not the standard precautions for routine care of hepatitis C patients. D. Standard: Standard precautions are the foundation for infection control practices and are recommended for all patients, regardless of their diagnosis. This includes measures such as hand hygiene, using personal protective equipment (PPE) when necessary, and safe handling of potentially contaminated materials. Since hepatitis C is primarily transmitted through blood and body fluids, standard precautions are appropriate for caring for clients with this condition.