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: Pathology
[{'content': 'The Most common site of Ectopic Phaeochromocytoma is: \nSelect and explain. \nA. Organ of zuckerkandl, B. Bladder, C. Filum terminate, D. Celiac plexus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Organ of zuckerkandl', 'role': 'assistant'}]