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: Social & Preventive Medicine
Median value for the given data 5, 5, 50, 150, 10, 20? 
Select and explain. 
A. 15, B. 10, C. 20, D. 40
A: 15
Answer: A: 15 
Explanation: Ans. is 'a' i.e., 15