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: Anatomy
Kerckring's centre for ossification isassociated with: 
Select and explain. 
A. Bones of skull, B. Ethmoid, C. Maxilla, D. Tibia
A: Bones of skull
Answer: A: Bones of skull 
Explanation: Bones of skull