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: Medicine
[{'content': 'An elderly woman presented with abdominal pain and vomiting for three days. A computed tomogram of the abdomen was obtained. What is the diagnosis? \nSelect and explain. \nA. Cecal volvulus, B. Intussusception, C. Mesenteric ischemia, D. Obturator hernia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer D. Obturator herniaAn obturator hernia was diagnosed.', 'role': 'assistant'}]