This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Orthopaedics
[{'content': 'The most common symptomatic Plica syndrome is \nSelect and explain. \nA. Medial plica, B. Suprapatellar plica, C. Lateral plica, D. Infrapatellar plica', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Plica syndrome is a condition which occurs when a plica (an extension of the protective synol capsule of the knee) becomes irritated, enlarged, or inflamed. The most common location of plica tissue is along the medial side of the knee', 'role': 'assistant'}]