Concept:The Swedish system of gymnastics, created by Per Henrik Ling, was based on scientific principles for health and corrective exercises. Explanation:Ling developed this system in early 19th century Sweden. It used anatomy and physiology to design movements for specific muscle groups. The exercises aimed to improve posture, flexibility, and correct physical defects. This system was therapeutic and educational, used in schools and healthcare. It stressed individual training, not competition or recreation. In contrast, the German system focused on military training with apparatus. The British system emphasized recreational games and teamwork. The American system highlighted competitive sports. The Swedish system’s scientific and corrective focus laid the groundwork for modern physical therapy and rehabilitation programs worldwide. Answer:B. Scientific and corrective exercises