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: Unknown
[{'content': 'Cobb’s angle is used to measure the degree of- \nSelect and explain. \nA. Kyphoscoliosis, B. Angular deformity of the knee, C. Extent of depression in calcaneal fracture, D. Extent of spondylolistheis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Refer: Mohindra’s Fundamentals of Orthopedics, 2nd edition, pg no. 244, 245)', 'role': 'assistant'}]