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: Surgery
[{'content': "Enteo-enteric fistula is seen in: March 2011 \nSelect and explain. \nA. Ulcerative colitis, B. Crohn's disease, C. Both of the above, D. None of the above", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B: Crohn's diseaseWith progression of the Crohn's disease, adhesions and transmural fissuring, intra-abdominal abscesses and fistula tracts can developEntero-enteric fistulae can occur into adjacent small bowel loops or the pelvic colon", 'role': 'assistant'}]