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
Transmural involvement & granuloma are seen in - 
Select and explain. 
A. Ulcerative coilitis, B. Crohn's disease, C. Tropical sprue, D. Amoebic colitis
B: Crohn's disease
Answer: B: Crohn's disease 
Explanation: None