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
The Most common site of Ectopic Phaeochromocytoma is: 
Select and explain. 
A. Organ of zuckerkandl, B. Bladder, C. Filum terminate, D. Celiac plexus
A: Organ of zuckerkandl
Answer: A: Organ of zuckerkandl 
Explanation: Organ of zuckerkandl