A nurse is caring for a client who has a stool culture that is positive for Clostridium difficile. Which of the following infection control precautions should the nurse take?

A. A face shield is unnecessary unless there is a risk of splashing. B. Masks are not needed for C. difficile, as it is not spread through airborne transmission. C. Alcohol-based hand rubs are ineffective against C. difficile spores; handwashing with soap and water is required. D. Contact precautions for C. difficile require the nurse to remove the protective gown and gloves inside the client's room to prevent contamination of outside areas.