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': 'Nearly 3/ 4th of occupational cancers are \nSelect and explain. \nA. Lung Cancer, B. Skin Cancer, C. Cancer Bladder, D. Leukemias', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Nearly 75% of occupational cancers are skin cancers.', 'role': 'assistant'}]