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
Acute radiation hepatic damage is most marked between- 
Select and explain. 
A. 1-7 days, B. 7-21 days, C. 21-40 days, D. 40-100 days
D: 40-100 days
Answer: D: 40-100 days 
Explanation: Acute radiation damage normally affects rapidly proliferating tissue : -


Hematopoietic tissue → Latent period 2-3 weeks.
Epithelium of GIT  → Latent period 3-5 days.
Lymphoid tissue


Acute radiation damage also affects the CNS → Latent period 15 minutes to 3 hours.
Hepatic radiation damage is not acute, it is subacute and appears within 90 days.