This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
Confounding factors can be eliminatined by all except- 
Select and explain. 
A. Matching, B. Blinding, C. Randomization, D. Multivariate analysis
C: Randomization
Answer: C: Randomization 
Explanation: Randomization is a statistical procedure by which the paicipants are allocated into groups usually called study and control groups to receive or not to receive an experimental, preventive or therapeutic procedure, manoeuvre, intervention. It is an attempt to eliminate bias and allow for comparability. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 90