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
Poached egg colony on potassium tellurite agar is characteristic of 
Select and explain. 
A. C. diphtheriae gravis, B. C. diphtheriae intermedius, C. C. diphtheriae mitis, D. C. Jeikeium
C: C. diphtheriae mitis
Answer: C: C. diphtheriae mitis 
Explanation: Daisy head - Gravis
Frog's egg colony - Intermedius
Poached egg - Mitis.