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: Dental
Best medium to transport an avulsed tooth, which is not to be reimplanted immediately: 
Select and explain. 
A. Viaspan, B. HBSS, C. Coconut water., D. Milk.
A: Viaspan
Answer: A: Viaspan 
Explanation: None