This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Anatomy
The appropriate media culture for a gram negative coccobacilli arranged in a school of fish , that causes STD with genital ulcers is 
Select and explain. 
A. Thayer Main media, B. Blood agar with X and V factors, C. Chocolate agar with isovitale X, D. Tellurite blood agar
C: Chocolate agar with isovitale X
Answer: C: Chocolate agar with isovitale X 
Explanation: Chocolate agar enriched with 1%isovitalex is used to grow H.ducreyi.