This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Randomization is a process by which the paicipants have equal chance of being selected as 
Select and explain. 
A. Case or control, B. Coho or non coho, C. Paicipation or non paicipation group, D. Study or control group
D: Study or control group
Answer: D: Study or control group 
Explanation: Ref:Park's Textbook of Preventive and Social Medicine 25th Ed