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
A child who has an avulsed tooth 1/2 hour back should
carry the tooth to the dentist in: 
Select and explain. 
A. Cold milk, B. Normal saline, C. Wrapped in a wet handkerchief, D. Buccal vestibule
A: Cold milk
Answer: A: Cold milk 
Explanation: None