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 lady presented with a 4 cm tumor in the left parietal lobe for which she underwent surgery and radiotherapy. After 3 months she presented with headache and vomiting. Which of the following would characterise the lesion in the patient? \nSelect and explain. \nA. Gd-enhanced MRI, B. 99Tc-HMPAO SPECT brain, C. c)\tDigital substraction angiography with dual source of ST scan, D. d)\t18FDG PET Scan', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]