This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
[{'content': 'In which of the following is the typical x-ray finding of spine seen \nSelect and explain. \nA. Tuberculosis spine, B. Renal osteodystrophy, C. Rickets, D. Osteomalacia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rugger-jersey spine describes the prominent subendplate densities at multiple contiguous levels to produce an alternating sclerotic-lucent-sclerotic appearance. This simulates the transverse bands of a rugby jersey', 'role': 'assistant'}]