This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
The following insulin can be given intravenously- 
Select and explain. 
A. Protamine zinc insulin, B. Ultra lente insulin, C. Semi lente insulin, D. Regular insulin
D: Regular insulin
Answer: D: Regular insulin 
Explanation: Ans. is 'd' i.e., Regular insulin