This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hospital waste and disaster management, Occupational health, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following diseases needs not to be screened for, in workers to be employed in a dye industry in gujarat? \nSelect and explain. \nA. Anemia, B. Bronchial asthma, C. Bladder cancer, D. Precancerous lesion', 'role': 'user'}, {'content': "Answer: A \nExplanation: Prepalcement examination in dye industries include asthma,skin and bladder,kidney diseases,precancerous lesion.Anemia comes under lead.(Ref.PARK'S textbook of preventive and social medicine 21st edition page no.753)", 'role': 'assistant'}]