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: Pharmacology
[{'content': 'Hypernatremia is caused by - \nSelect and explain. \nA. Prednisolone, B. Fludrocoisone, C. Hydrocoisone, D. Dexamethasone', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'b' i.e., Fludrocoisone Fludrocoisone has maximum mineralocoicoid activity, so it will cause maximum hypernatremia. Hypernatremia is propoional to the mineralocoicoid efficacy of steroids.", 'role': 'assistant'}]