This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Dose of clonidine in suppression test done for pheochromocytoma is? 
Select and explain. 
A. 0-3 mg, B. 10 mg, C. 100 mg, D. 200 nig
A: 0-3 mg
Answer: A: 0-3 mg 
Explanation: clonidine suppression test is less sensitive so rarely used( Harrison 17 pg 2271)