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': 'Which ofthe following is he most prominent feature of immunoproliferative small intestinal disease (IPSID)- \nSelect and explain. \nA. Malabsorption, B. Obstruction, C. Bleeding, D. Abdominal pain', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Immunoproliferative small intestinal disease (IPSID) was recently added to the growing list of infectious pathogen-associated human lymphomas. IPSID lymphomas reveal excessive plasma cell differentiation and produce truncated alpha heavy chain proteins lacking the light chains as well as the first constant domain Abdominal pain impoant feature of IPSID Ref Davidson edition23rd pg 818', 'role': 'assistant'}]