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
Fibrinoid necrosis can be seen in: 
Select and explain. 
A. Abscess cavity., B. Pancreas., C. Heart., D. Peptic ulcer.
D: Peptic ulcer.
Answer: D: Peptic ulcer. 
Explanation: None