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: Unknown
The following measures are noted 1,2,3,4 and 6 during a study. True regarding the following observations: 
Select and explain. 
A. Mean 3, B. Median 3, C. Mode 3, D. Standard deviation 1
B: Median 3
Answer: B: Median 3 
Explanation: (Refer: K. Park’s Textbook of Preventive and Social medicine, 24th edition, pg no: 884)
Measure of central tendency