This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Selective medium for corynebacterium diphtheriae - 
Select and explain. 
A. Loffeler's serum slop, B. Tellurite blood agar, C. Chocolate agar, D. Tinsdale medium
B: Tellurite blood agar
Answer: B: Tellurite blood agar 
Explanation: Ans. is 'b' i.e., Tellurite blood agar &'d' i.e., Tinsdale medium* Tellurite blood agar (Tinsdale medium) is the selective medium for corynebacterium diphtheriae as tellurite inhibits growth of most other bacteria.