This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forearm wrist and hand injuries, Subject name: Orthopaedics
[{'content': "The commonest complication of Colles fracture \nSelect and explain. \nA. Stiffness of fingers, B. Malunion, C. Sudeck's osteodystrophy, D. Rupture of EPL tendon", 'role': 'user'}, {'content': 'Answer: A \nExplanation: In Colles fracture, Stiffness of the fingers (commonest) and malunion are common complications. Other complications seen occasionally are - Sudeck&;s osteodystrophy, carpal tunnel syndrome, and rupture of the extensor pollicis longus tendon. ref : Maheswari 9th edition Pg: 114', 'role': 'assistant'}]