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
Radiographically, the normal horizontal plane of alveolar bone interdentally is related to 
Select and explain. 
A. Cemento enamel junction of adjacent teeth, B. Epithelial attachment of adjacent teeth, C. Trabecular pattern of bone, D. All of the above
A: Cemento enamel junction of adjacent teeth
Answer: A: Cemento enamel junction of adjacent teeth 
Explanation: None