This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Occupational Health, Subject name: Social & Preventive Medicine
[{'content': 'Asbsestosis is associated with which cancer: \nSelect and explain. \nA. Lung cancer, B. Liver cancer, C. Colon cancer, D. Stomach cancer', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Lung cancerRef: K. Park 23rd ed. / 807* Asbestosis occurs due to long duration (>10 years) exposure to asbestos.* This may lead to pulmonary fibrosis, carcinoma of bronchus, mesothelioma of pleura/peritoneum and GIT cancer.Other Important Occupational CancerAgentAssociated CancerAsbestosisArsenicBenzeneBenzidineSilicaWood dustMesotheliomaSkin, lung, liver CALeukemiaBladder CALung CANasal sinus* Most common occupational cancer: skin CA (75%), mainly squamous cell CA.', 'role': 'assistant'}]