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
The Finance Commission derives its authority from the 
Select and explain. 
A. Constitution of India, B. Parliament of India, C. President of India, D. Supreme cou of India
A: Constitution of India
Answer: A: Constitution of India 
Explanation: Ref: 25th Ed K.Park's Textbook Of Preventive and Social Medicine