How does sterile technique differ from clean technique?

How does sterile technique differ from clean technique?

• A. Sterile technique is used for noninvasive tasks
• B. Clean technique maintains a sterile field for invasive procedures
• C. Sterile technique reduces contamination during noninvasive care
• D. Sterile technique maintains a completely sterile field for invasive procedures; clean technique reduces contamination for noninvasive tasks

Answer: (D)