Which of the following correctly differentiates ionizing from non-ionizing radiation?

• A. Ionizing radiation is less effective than non-ionizing radiation for sterilizing food.
• B. Ionizing radiation includes UV light, while non-ionizing radiation includes X-rays.
• C. Ionizing radiation can penetrate surfaces, while non-ionizing radiation is limited to surface sterilization.
• D. Non-ionizing radiation is used to sterilize surgical instruments, while ionizing radiation is not.

Answer: (C)