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: Radiology
Which of the following lesion has radiographic Soap bubble appearance, with a characteristic feature of 'Pumping action' 
Select and explain. 
A. CGCG., B. Central hemangioma., C. Ameloblastoma., D. OKC.
B: Central hemangioma.
Answer: B: Central hemangioma. 
Explanation: "Pumping action" is characteristic clinical feature. If tooth in the region of tumour is pushed into the tumor, it will rebound back to the original.