What Is the Distinction Between Crohnʹs Disease and Ulcerative Colitis

What is the distinction between Crohnʹs disease and ulcerative colitis?

A) Crohnʹs disease produces deeper erosions of the mucosa and occurs throughout the intestines, whereas ulcerative colitis occurs mostly in the rectum.
B) Crohnʹs disease is caused by the bacterium H. pylori, whereas ulcerative colitis results from the failure of acid to be neutralized before it reaches the colon.
C) Although both diseases are caused by inflammation, Crohnʹs disease occurs only in the small intestine, whereas ulcerative colitis occurs only in the large intestine.
D) Crohnʹs disease results in diverticula, caused by insufficient dietary fiber, whereas ulcerative colitis is caused by the bacterium H. pylori.