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
Traumatized pulp which is not capable of positive response to tooth vitality tests for 6–8 weeks after injury is called as: 
Select and explain. 
A. Stunned pulp, B. Dead pulp, C. Necrosed pulp, D. All of the above
A: Stunned pulp
Answer: A: Stunned pulp 
Explanation: Stunned pulp = Traumatized pulp which is not capable of positive response to tooth vitality tests for 6–8 weeks after injury.