This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'A 43-year-old window cleaner fell off a scaffold. He sustained an open wound on the right leg. Debridement was carried out in the emergency department, and the edges of the wound were left open.Which factor is least likely to inhibit wound contraction? \nSelect and explain. \nA. Radiation, B. Cytolytic drug, C. Transformation growth factor b, D. Full-thickness skin graft', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Following the application of a full-thickness graft, contraction at the site of the recipient site is maximally inhibited by a full-thickness and to a lesser extent by the partial-thickness graft.', 'role': 'assistant'}]