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: Pathology
Gemination of teeth occur due to 
Select and explain. 
A. Division of a single tooth bud after calcification, B. Division of a single tooth bud before calcification, C. Fusion of two teeth before calcification, D. Fusion of two teeth after calcification
B: Division of a single tooth bud before calcification
Answer: B: Division of a single tooth bud before calcification 
Explanation: None