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
Thiopental sodium is administered intravenously as : 
Select and explain. 
A. 25% solution, B. 2.5% solution, C. 0.25% solution, D. 0.025% solution
B: 2.5% solution
Answer: B: 2.5% solution 
Explanation: None