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': 'Which of the following is common in all forms of shock? \nSelect and explain. \nA. Sepsis, B. Hypovolemia, C. Vasoconstriction, D. Impaired tissue perfusion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]