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': 'All of the following are true for occupational lead poisoning except \nSelect and explain. \nA. lead poisoning is not a notifiable disease, B. lead in blood and urine provide quantitative indicators of exposure, C. inhalation is the most common mode of absorption, D. Basophilic stippling is a sensitive parameter of hematological response', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]