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: Pharmacology
[{'content': 'Dobutamine is preferred over dopamine in cardiogenic shock because of its effect related to: \nSelect and explain. \nA. Better cardiac stimulation, B. Less peripheral vasoconstriction, C. Lower risk of cardiac arrhythmias, D. More CNS stimulation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]