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
Byssinosis is due to exposure of ? 
Select and explain. 
A. Coal dust, B. Cotton dust, C. Sugarcane dust, D. Silica
B: Cotton dust
Answer: B: Cotton dust 
Explanation: Ans. is 'b' i.e., Cotton dust Byssinosis is due to exposure to cotton dust in textile industries.