This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
[{'content': 'The following factors impair wound healing except \nSelect and explain. \nA. Diabetes mellitus, B. Glucocorticoids, C. Vitamin C deficiency, D. Clot formation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. (d) Clot formation(Ref: Robbin's 9th ed/pg 106)Factors Impairing HealingInfectionDiabetesprotein deficiency, vitamin C deficiency Glucocorticoids (steroids)Mechanical factors such as increased local pressure or torsion may cause wounds to dehiscePoor perfusion, due either to arteriosclerosis and diabetes or to obstructed venous drainage (e.g., in varicose veins) Foreign bodiesBlood clot formation is the earliest event in wound repair", 'role': 'assistant'}]