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: Medicine
All the following are features of Addison's disease, EXCEPT: 
Select and explain. 
A. Hypoglycemia, B. Hypocalcaemia, C. Hypotension, D. Hyponatremia
B: Hypocalcaemia
Answer: B: Hypocalcaemia 
Explanation: None