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: Radiology
[{'content': 'Which of the following is classic CT appear-ance of an acute Subdural hematoma: \nSelect and explain. \nA. Lentiform-shaped hyperdense lesion, B. Cresent-shaped hypodense lesion, C. Cresent-shaped hyperdense lesion, D. Lentiform-shaped hypodense lesion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Cresent-shaped hyperdense lesion', 'role': 'assistant'}]