The nurse is asked why neomycin is given as a bowel prep before GI surgery. The nurse correctly replies that:

A. A reduction of intestinal bacteria lessens the possibility of postoperative infection: This is the correct answer. Neomycin is an antibiotic that helps decrease the number of bacteria in the bowel, which can reduce the risk of surgical site infections after GI surgery. B. The bacteria found in the bowel cannot be destroyed after surgery: While some bacteria are resistant to antibiotics, bowel prep aims to reduce overall bacterial load, not eliminate them completely. C. Abdominal surgery requires starting antibiotic therapy 4 days before surgery: Prophylactic antibiotics are often given shortly before surgery, not necessarily 4 days in advance. Bowel prep can be a separate measure. D. Anesthesia makes the bowel resistant to an antibiotic after surgery: Anesthesia doesn't cause antibiotic resistance in the bowel.