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
Which is a long acting insulin- 
Select and explain. 
A. Lispro, B. Aspart, C. Glargine, D. Glulicine
C: Glargine
Answer: C: Glargine 
Explanation: Ans. is 'c' i.e., Glargine 1. Rapid acting Insulin2.Short acting3. Intermediate acting4. Long acting- Insulin lispro, Insulin asparf, Insulin glulisine.- Regular (soluble) insulin, semilente insulin.- Insulin zinc suspension (Lente), Neutral protamine hagedorn (isophane insulin).- Protamin zinc insulin, Insulin glargine, Insulin determir