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 not an insulin analogue? 
Select and explain. 
A. Insulin glargine, B. Insulin lispro, C. Actrapid, D. Insulin aspart
C: Actrapid
Answer: C: Actrapid 
Explanation: ANSWER: (C) ActrapidREF: Pharmacology ReCap 2.0 for Bachelor of Dentistry Students by Dr J. G. Buch page 304Insulins:Highly purified mono- component insulinPorcine Actrapid- RegularShort actingPorcine Monotard- LenteIntermediate actingPorcine Insulatard- NPH Porcine Mixtard30% regular, 70% IsophaneHuman insulinHuman Actrapid- RegularShort actingHuman Monotard- LenteIntermediate actingHuman Insulatard- NPH Human Mixtard30% regular, 70% IsophaneInsulin analoguesInsulin Lispro Insulin aspart Insulin glulisineUltra short actingInsulin glargineLong acting