This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
Which of the following is a long-acting insulin? 
Select and explain. 
A. Lispro, B. Aspa, C. Glulisine, D. Detemir
D: Detemir
Answer: D: Detemir 
Explanation: Insulin typeSho-acting LisproGlulisineAspaIntermediate-actingRegularLong-actingDetemirGlargineNPH(Ref: William's Obstetrics; 25th edition)