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: Orthopaedics
[{'content': 'Perichondrial ring is - \nSelect and explain. \nA. Seen around foramen magnum, B. Seen around epiphyseal plate, C. More prominent in adults, D. Shear strength increases with age', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The perichondrial ring of La Croix also surrounds the growth plate circumferentially, similar to perichondrial groove. Perichondrial ring extends towards metaphysis and become continuous with periosteum of metaphysis.\nWith increasing age, perichondrial ring is thinned and its shear resistance (strength) is decreased.', 'role': 'assistant'}]