Which of the Following Statements Is True of the Cleaning

Which of the following statements is true of the cleaning techniques used to eliminate bacteria?

A) Glutaraldehyde solution is used to remove microorganisms on the skin prior to puncturing the vein to obtain blood.
B) An iodophor swab is used for a short swabbing procedure before obtaining blood for a routine blood test.
C) Alcohol or iodophor solutions should be used to disinfect surfaces before the use of soap or detergent if dirt or organic matter has accumulated on the surface.
D) None of these are correct.