This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
[{'content': 'Cytogenetics for synol cell sarcoma is \nSelect and explain. \nA. t(X:18), B. t(17,9), C. t(9,22), D. t(11,14)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most synol sarcoma show a charecteristic(x:18) translocation that produces a fusion gene encoding a chimeric transcription factor. They usually devolop in deep soft tissues aroundcthe knee,occuring in age groups 20-40s Robbins basic pathology 9th edition page no 795,heading=synol sarcoma', 'role': 'assistant'}]