This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Most common Morphological difference between Ulcerative Colitis and Crohn's disease 
Select and explain. 
A. Mucosal edema, B. Crypt abscess, C. Diffuse polyps, D. Lymphoid aggregates
B: Crypt abscess
Answer: B: Crypt abscess 
Explanation: Ref:- Bailey and Love 27th Edition; Pg num:- 1268