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
High dose radiotherapy causes pancreatic ? 
Select and explain. 
A. Acinar deficiency, B. Islets of Langerhans deficiency, C. A + B, D. None
A: Acinar deficiency
Answer: A: Acinar deficiency 
Explanation: Ans. is 'a' i.e., Acinar deficiency o Acinar cells are radiosensitive while islets are relatively radioresistant.