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': 'Beta blockers are not indicated in ? \nSelect and explain. \nA. Acute CHF, B. Hypeension, C. Chronic CHF, D. Arrhythmia', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Actue CHF b -blckers are contraindicated in acute decompensated hea failure.", 'role': 'assistant'}]