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: Microbiology
Selective medium for meningococcal infection is - 
Select and explain. 
A. DCA, B. Blood agar, C. LJ medium, D. Thayer - martin medium
D: Thayer - martin medium
Answer: D: Thayer - martin medium 
Explanation: None