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: Medicine
[{'content': 'Most specific symptom of temporal aeritis? \nSelect and explain. \nA. Visual loss, B. Jaw claudication, C. Temporal headache, D. Polymyalgia rheumatica', 'role': 'user'}, {'content': "Answer: B \nExplanation: Giant cell aeritis ( temporal aeritis ) is a chronic vasculitis of large and medium vessel aeries, usually affecting the cranial branches of aeries arising from aoic arch. Jaw claudication is an underrepoed, yet, a very specific symptom of GCA, with a high positive predictive value. Ref : Harrison's Principles of Internal medicine, 21st edition , Page 2188; NEJM, May 5, 2016, 1794-1795.", 'role': 'assistant'}]