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
Incidental finding in CT scan, a 3cm adrenal mass, which of the following is not done - 
Select and explain. 
A. Adrenalectomy, B. Dexamethasone suppression test, C. Measurement of catecholamines, D. Midnight plasma cortisol
A: Adrenalectomy
Answer: A: Adrenalectomy 
Explanation: None