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
McKneown’s Theory states that reduced prevalence of Tuberculosis occurs due to 
Select and explain. 
A. Enhanced knowledge and awareness, B. Medical advancements, C. Behavioural modification, D. Social and environmental factors
A: Enhanced knowledge and awareness
Answer: A: Enhanced knowledge and awareness 
Explanation: • Thomas McKeown attributed the modern rise in the world population, AND DECLINE OF TB from the 1700sto the present to broad economic and social changes (especially diet and nutrition – “Nutritional Determinism”) rather than to targeted public health or medical interventions.