You are presented with the question "What through phones is transmitted through optical fibers?" and the following answer choices: 
- photons
 - medicine
 - An object is seen
 - pictures
 - Communication
 - Electrical energy
 - electricity
 - telephone bills

Now knowing that telephones are used for communication by two people by transmitting sound and telephone conversations and data are transmitted through optical fibers, choose the best answer.


 

     Communication    