This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'A patient has 2 months POP cast for tibial fracture of left leg. Now he needs mobilisation with a single crutch. You will use this crutch on which side: \nSelect and explain. \nA. Left side, B. Right side, C. Any side, D. Both side', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Right side', 'role': 'assistant'}]