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
All of the following preparations of insulin are rapid and sho-acting EXCEPT: 
Select and explain. 
A. Lispro, B. Aspa, C. Glargine, D. NPH
C: Glargine
Answer: C: Glargine 
Explanation: Insulin glargine is a long-acting biosynthetic insulin. The onset of action is delayed. It acts for around 24hrs and action stas after 1- 1 30hr ultrasho acting are used for emergency purposes like diabetic ketoacidosis. glargine is not useful in this case (REF. Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 261)