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 of the following is the emergency treatment of
choice in case of traumatic injury to tooth? 
Select and explain. 
A. Full veneer crown preparation with stainless steel crown, B. A Stainless steel or preformed orthodontic band around the tooth, C. An Acid etched composite restoration, D. A Pin retained composite restoration
C: An Acid etched composite restoration
Answer: C: An Acid etched composite restoration 
Explanation: None