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
Based on Bokenkamp's grading of enlargements, an enlargement covering 3/4th of the crown is considered as 
Select and explain. 
A. Grade I, B. Grade II, C. Grade III, D. Grade IV
C: Grade III
Answer: C: Grade III 
Explanation: None