You are presented with the question "People can listen and talk to each other over long distances using what?" and the following answer choices: 
- Neuron.
 - power
 - microscope
 - microphone
 - electricity
 - dictaphone
 - telephone
 - waves

Now knowing that atelephone is used for communication by humans over long distances and communicating is as much about listening as it is about talking, choose the best answer.


 

       telephone  