This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
[{'content': 'All the following take pa in the formation of the wrist joint, except \nSelect and explain. \nA. Scaphoid, B. Triquetrum, C. Distal end of radius, D. Distal end of ulna', 'role': 'user'}, {'content': "Answer: D \nExplanation: The radioulnar joint (wrist joint) is a synol,biaxial and ellipsoid joint formed by the aiculation of Distal end of radius Aicular disc of the triangular fibrocailage Scaphoid,lunate and triquetrum Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 872.", 'role': 'assistant'}]