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': "Volkmann's contractrue: \nSelect and explain. \nA. Is localized thickening of palmar fascia, B. Develops at the ankle in a case of chronic venous ulcer, C. Follows Ischaemia of the forearm, D. Is due to excessive scarring of the skin of the arm following a burn.", 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Follows ischemia of forearm', 'role': 'assistant'}]