Which disorder is depicted in the image below?

A. Lordosis is an exaggerated inward curvature of the lumbar spine. B. Scoliosis is a lateral curvature of the spine, often characterized by an "S" or "C" shape when viewed from behind. This is the disorder depicted in the image. C. Kyphosis is an exaggerated outward curvature of the thoracic spine, often leading to a hunchback appearance. D. Funnel chest (pectus excavatum) is a condition where the breastbone sinks into the chest, creating a sunken appearance.