Fact 1: Matter vibrating can cause sound.

Fact 2: All guitars produce sound through the mechanical vibration of strings.

Given the two facts above, answer the question "What do guitar strings do?" with the following options: 
- Charge the guitar
 - Relieve pain
 - Vibrates
 - reproduce
 - squeeze
 - Bend
 - Create silence
 - Mute the guitar


 

   Vibrates      