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: Surgery
Z-platy is performed in cases of 
Select and explain. 
A. High frenal attachment, B. Shallow sulcus, C. Deep sulcus, D. Low frenal attachment
A: High frenal attachment
Answer: A: High frenal attachment 
Explanation: None