This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli), Subject name: Microbiology
MYPA agar is used for? 
Select and explain. 
A. B. anthrax, B. B. cereus, C. Campylobacter, D. S.aureus
B: B. cereus
Answer: B: B. cereus 
Explanation: Mannitol egg yolk phenol red polymyxin agar (MYPA) is the selective medium for Bacillus cereus Polymyxin lysozyme EDTA thallium acetate (PLET) is the selective medium for Bacillus anthracis. Skirrow's medium and Butzler medium are the selective media for Campylobacter. Ludlam's medium and salt agar are the selective media for S.aureus.