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: Dental
Feather edge finish line is indicated in cases of: 
Select and explain. 
A. Tilted abutment, B. Esthetic areas, C. Upper canine PVC, D. Not recommended
D: Not recommended
Answer: D: Not recommended 
Explanation: None