This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fracture Management, Subject name: Orthopaedics
Cobb's angle is used to measure the degree: 
Select and explain. 
A. Kyphoscoliosis, B. Angular deformity of the knee, C. Extent of depression in calcaneal fracture, D. Extent of spondylolisthesis
A: Kyphoscoliosis
Answer: A: Kyphoscoliosis 
Explanation: The angle between intersecting lines drawn perpendicular to the top of the top veebrae and the bottom of the bottom veebrae is the Cobb angle Cobb's angle of 10 degree is minimum angulation to define the scoliosis.