This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Following pathogenetic mechanisms operate in septic shock except - \nSelect and explain. \nA. Increased peripheral vascular resistance, B. Veno constriction, C. Direct toxic endothelial injury, D. Activation of complement', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Increased peripheral vascular resistance", 'role': 'assistant'}]