Which of the following regarding antimicrobial control agents is FALSE?

A)Contaminating organic debris such as blood or sputum decrease effectiveness.
B)Some agents kill by denaturing microbial cell proteins.
C)Some agents affect microbial cell membranes by dissolving lipids.
D)Silver-impregnated dressings are used for treating antibiotic-resistant bacteria.
E)Alcohols effectively inactivate nonenveloped viruses by attacking lipids.