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
In designing a retainer on a noncarious mandibular first premolar abutment with short clinical crown which of the following restorations is most appropriate? 
Select and explain. 
A. A full crown, B. A reverse 3/4 crown, C. MOD onlay, D. Inlay
A: A full crown
Answer: A: A full crown 
Explanation: None