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: Dental
Central gram negative core supporting outer coccal cells is called: 
Select and explain. 
A. Bristle brush arrangement, B. Corncob arrangement, C. Bottle brush arrangement, D. Hourglass arrangement
B: Corncob arrangement
Answer: B: Corncob arrangement 
Explanation: None