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
Ulceration of Peyer's patches occur in _________ infection 
Select and explain. 
A. Amoebiasis, B. Crohn's, C. Salmonella, D. Clostridium difficile
C: Salmonella
Answer: C: Salmonella 
Explanation: The Peyer's patches show oval ulcers with their long axis along the length of the bowel in typhoid ulcer (salmonella infection).