This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
In which of the following is throat swab transpoed to the lab? 
Select and explain. 
A. Plastic tube, B. Plate and agar, C. Test tube, D. No covering
B: Plate and agar
Answer: B: Plate and agar 
Explanation: None