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: Surgery
[{'content': 'In parathyroid crisis with sudden elevations of calcium over 16 mg /dl ; the treatment consist of -a) Intravenous vitamin Db) Parathyroidectomy for removal of adenomac) Thyrocalcitonind) Intravenous bicarbonatee) All of the above \nSelect and explain. \nA. bc, B. c, C. ac, D. ad', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]