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: Anatomy
[{'content': 'Massage in which triangle of neck is of diagnostic and therapeutic value in arrhythmias? \nSelect and explain. \nA. Occipital triangle, B. Carotid triangle, C. Diagastric triangle, D. Muscular triangle', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]