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': 'Insulin of choice in a patient with Diabetic ketoacidosis? \nSelect and explain. \nA. Lispro, B. Deterimer, C. Aspart, D. Regular Insulin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Regular Insulin is short acting formulation given intravenously in cases of Diabetic ketoacidosis.', 'role': 'assistant'}]