This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Biochemistry
[{'content': 'Acquired porphyria is due to the which of the following: \nSelect and explain. \nA. Mercury toxicity, B. Lead poisoning, C. Copper deficiency, D. Selenium toxicity', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Porphyria can be either inherited or acquired. Causes of acquired porphyria: Lead poisoning Alcoholism Hepatitis C infection Lead induced acquired porphyria is known as Plumboporphyria.', 'role': 'assistant'}]