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: Pathology
[{'content': 'Acute radiation hepatic damage is most marked between- \nSelect and explain. \nA. 1-7 days, B. 7-21 days, C. 21-40 days, D. 40-100 days', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Acute radiation damage normally affects rapidly proliferating tissue : -\n\n\nHematopoietic tissue\xa0→ Latent period 2-3 weeks.\nEpithelium of GIT\xa0\xa0→ Latent period 3-5 days.\nLymphoid tissue\n\n\nAcute radiation damage also affects the CNS → Latent period 15 minutes to 3 hours.\nHepatic radiation damage is not acute, it is subacute and appears within 90 days.', 'role': 'assistant'}]