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: Anaesthesia
All of the following factors decrease the Minimum Alveolar Concentration (MAC) of an inhalation anaesthetic agent except. 
Select and explain. 
A. Hypothermia, B. Hyponatremia, C. Hypocalcemia, D. Anemia
C: Hypocalcemia
Answer: C: Hypocalcemia 
Explanation: C i.e. Hypocalcemia