When cleansing a wound with a drain, which technique should the practical nurse (PN) use?

A. Start at the most inflamed area to protect the tissue and promote healing: Cleansing should progress from least contaminated to most contaminated area. B. Start at the area with the most drainage to avoid infecting other areas: This would spread bacteria to cleaner tissue. C. Start at the drain site to avoid bringing skin bacteria toward the wound: Drain site is most contaminated; clean outward to prevent contamination of wound. D. Start at the clean area several inches away from the drain to avoid contaminating the drain: Would push bacteria toward the more vulnerable drain site.