Why are quaternary ammonium compounds generally considered less effective in the presence of organic contaminants?

• A. Organic contaminants enhance their antimicrobial properties.
• B. Organic contaminants inhibit their ability to disrupt membranes.
• C. Organic contaminants increase their solubility in water.
• D. Organic contaminants do not affect their antimicrobial activity.

Answer: (B)