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
[{'content': 'Metabolic alkalosis leads to? \nSelect and explain. \nA. Low potassium, B. High calcium, C. Low I2 trapping by follicular cells, D. High I2 trapping by follicular cells', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]