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
Left bundle branch block (LBBB) on ECG can suddenly develop in all of the following except 
Select and explain. 
A. Acute MI, B. Ashman syndrome, C. Hypokalemia, D. Hyperlcalernia
C: Hypokalemia
Answer: C: Hypokalemia 
Explanation: None