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: Pharmacology
[{'content': 'The absolute CONTRAINDICATION to lithium is March 2004 \nSelect and explain. \nA. Renal failure, B. Glaucoma, C. Epilepsy, D. Angina', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. Renal failure', 'role': 'assistant'}]