This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
The theory of "epidemiological web of causation" was forwarded by 
Select and explain. 
A. Robe Koch and Louis Pasteur, B. McMahon and Colleagues, C. Henle-Koch, D. John Stua Mill
B: McMahon and Colleagues
Answer: B: McMahon and Colleagues 
Explanation: For explaining the causation of such non-communicable diseases, in paicular, McMahon and Colleagues (McMahon and Pugh T. Epidemiology: Principle and methods 1st Ed, 1970) forwarded the theory of "epidemiological web of causation" Ref: McMahon and Colleagues. Text book on Public Health and Community Medicine pg: 19.