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
Corynebacterium diphtheriae can be grown within 6-8 hour on - 
Select and explain. 
A. Potassium tellurite media with iron, B. MacConkey's agar, C. Dorset egg medium, D. Loeffler's serum slope
D: Loeffler's serum slope
Answer: D: Loeffler's serum slope 
Explanation: None