You are presented with the question "Where can free nerve endings be found?" and the following answer choices: 
- eardrum
 - Localized damage
 - on the Sun
 - mouth of rivers
 - in the skin
 - heat or cold
 - in the fingernails
 - in bacteria

Now knowing that pressure receptors are found mainly in the skin and some receptors are free nerve endings, choose the best answer.


 

     in the skin    