This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Pharmacology
Type I Diabetes Mellitus is initially managed by:- 
Select and explain. 
A. Metformin, B. Sulfonylureas, C. Meglitinides, D. Insulin
D: Insulin
Answer: D: Insulin 
Explanation: Insulin is the only treatment of Type 1 DM. Pramlintide is also approved for Type 1 diabetes along with insulin. DOC for Type 2 DM is Metformin.