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
Rural and urban population differ in incidence in all diseases except 
Select and explain. 
A. Bronchitis, B. TB, C. Lung Cancer, D. Mental illness
B: TB
Answer: B: TB 
Explanation: Non modifiable risk factors : age, sex, family history, Genetic factors and personality.
—Park's textbook of preventive and social medicine 23rd edition