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
The medium used for Mycobacterium tuberculosis is - 
Select and explain. 
A. Sabouraud's medium, B. LJ medium, C. Pike's medium, D. NIH medium
B: LJ medium
Answer: B: LJ medium 
Explanation: None