This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
[{'content': 'Most common route of administration of insulin: \nSelect and explain. \nA. Intramuscular, B. Subcutaneous, C. Intravenous, D. Intradermal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. SubcutaneousMost common route of administration is subcutaneous. Only in case of diabetic ketoacidosis, regular insulin is given Intravenously.', 'role': 'assistant'}]