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
The stimulus, which provokes pain easily? 
Select and explain. 
A. Analgesia, B. Allodynia, C. Dysasthesia, D. Hyperpathia
D: Hyperpathia
Answer: D: Hyperpathia 
Explanation: None