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: Biochemistry
[{'content': 'A 20 year old male patient presents with the chief complaint of pain in abdomen. General examination reveals xanthomas present (in clusters on back, buttocks and arms, legs). On percussion, hepatomegaly and splenomegaly can be appreciated. On blood investigations, LDL level decreased and HDL normal.Which is the most probable diagnosis? \nSelect and explain. \nA. Familial Chylomicronemia Syndrome (FCS)-Type I, B. Familial Dysbeta lipoproteinemia (FDBL)- Type III, C. Familial Hypertriglyceridemia (FHTG)-Type IV, D. Familial Combined Hyperlipidemia (FCHL)-Type IIb', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]