This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2019, Subject name: Pathology
[{'content': 'All of the following are poor prognostic markers of multiple myeloma, except: \nSelect and explain. \nA. t(1;14), B. t(14;16), C. 1q gain, D. t(14;20)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Several cytogenetic abnormalities such as t(4;14), del(17/17p), t(14;16), t(14;20), nonhyperdiploidy, and gain(1q) are identified that confer poor prognosis in cases of multiple myeloma.', 'role': 'assistant'}]