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
Hall mark signs of neuropathic pain are mechanical hyperalgesia and 
Select and explain. 
A. Allodynia, B. Alopecia, C. Allocretia, D. Allogeusia
A: Allodynia
Answer: A: Allodynia 
Explanation: None