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
Formation of Etiological Hypothesis is 
Select and explain. 
A. Destriptive Epidemiology, B. Analytical Epidemiology, C. Experimental epidemiology, D. None of the above
A: Destriptive Epidemiology
Answer: A: Destriptive Epidemiology 
Explanation: None