A nurse is teaching a group of newly licensed nurses about communicable diseases and transmission-based precautions. Which of the following statements by a newly licensed nurse indicates an understanding of the teaching?
A. "Clients who have influenza should wear a mask when leaving their room."
B. "Clients who have varicella should be placed in contact isolation."
C. "A mask is necessary when caring for a patient who has Staphylococcus aureus."
D. "A negative-pressure room is required for clients who have scabies."