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
[{'content': 'False about coronary heart disease \nSelect and explain. \nA. Heavy cigarette smoking is a risk factor, B. Indian CHD occurs 1 decade later than Western CHD, C. Males are affected more than females, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]