Ulcerative Colitis Differs from Crohn's Disease in What Way

Multiple Choice

Ulcerative colitis differs from Crohn's disease in what way?

A) It cannot be cured by surgery.
B) The disease typically recurs at the site of a previous ulcer.
C) Scar tissue at the site may cause a bowel obstruction.
D) Ulcers form on the surface of the colon, starting in the rectum and spreading proximally.