This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
[{'content': 'Sympathetic stimulation decreases blood flow to all except \nSelect and explain. \nA. Skin, B. Coronary circulation, C. Cerebral, D. Renal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Coronary circulation: Sympathetic stimulation will not decrease blood flow to the hea. If it occurs, then during sympathetic stimulation there is a high chance of getting myocardial infarction.', 'role': 'assistant'}]