You are presented with the question "What sense differences in temperature or pain?" and the following answer choices: 
- Veins and arteries.
 - the skin
 - Merkel's discs
 - movie discs
 - frontal zones
 - cd discs
 - sensory neurons
 - sound discs

Now knowing that some touch receptors sense differences in temperature or pain and merkel's discs are touch receptors, choose the best answer.


 

   Merkel's discs      