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': '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: Ans. is 'a' i.e., Anemia Hazards in dye industry include : Bronchial Asthma Skin, bladder and kidney diseases (CA Bladder) - 561 Park Precancerous lesion Anemia is not a hazard in the dye industry and thus its screening is not mandatory.", 'role': 'assistant'}]