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 of the following may precipitate digitalis toxicity except - 
Select and explain. 
A. Hypocalcemia, B. Hypokalemia, C. Hypomagnecemia, D. Hypothyroidism
A: Hypocalcemia
Answer: A: Hypocalcemia 
Explanation: None