This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Joint Disorders, Subject name: Orthopaedics
[{'content': 'Talocalcaneonavicular joint is a type of: \nSelect and explain. \nA. Saddle, B. Ball and socket, C. Hinge, D. Plane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: * Ball and socket joint type 1. Hip 2. Talocalcaneonavicular3. Shoulder * Saddle type joint - 1st metacarpal joint* Hinge type joint - Elbow joint, knee joint* Plane type joint - intercarpal and intearsal joint', 'role': 'assistant'}]