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
Which proximal box should be given preference if the adjacent tooth proximal box are different in size. 
Select and explain. 
A. Prepare and restore larger first, B. Prepare and restore smaller first, C. Prepare larger first and restore smaller first, D. Prepare smaller first and restore larger first
C: Prepare larger first and restore smaller first
Answer: C: Prepare larger first and restore smaller first 
Explanation: None