This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Electrolyte Imbalance, Subject name: Medicine
Metabolic alkalosis leads to? 
Select and explain. 
A. Low potassium, B. High calcium, C. Low I2 trapping by follicular cells, D. High I2 trapping by follicular cells
A: Low potassium
Answer: A: Low potassium 
Explanation: None