This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health education & planning, Subject name: Social & Preventive Medicine
[{'content': 'The Finance Commission derives its authority from the \nSelect and explain. \nA. Constitution of India, B. Parliament of India, C. President of India, D. Supreme cou of India', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref: 25th Ed K.Park's Textbook Of Preventive and Social Medicine", 'role': 'assistant'}]