This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': "Boa's sign seen in \nSelect and explain. \nA. Acute cholangitis, B. Acute Cholecystitis, C. Mirizzi syndrome, D. Primary sclerosing cholangitis", 'role': 'user'}, {'content': "Answer: B \nExplanation: Boas' or Boas's sign is hyperaesthesia (increased or altered sensitivity) below the right scapula is a symptom of acute cholecystitis", 'role': 'assistant'}]