This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Hypoglycemia is an impoant feature of which of the following condition? 
Select and explain. 
A. Hypoparathyroid, B. Addison disease, C. Pheochromocytoma, D. All of the above
B: Addison disease
Answer: B: Addison disease 
Explanation: .