Atelephone is used for communication by humans over long distances, and communication is about the sharing of ideas, thoughts and points of views. Given these facts, what is used to share ideas, thoughts and views by humans over long distances among the following options:
- thoughts and prayers
 - power
 - hand lenses
 - smoke signals
 - telephones
 - photons
 - electricity
 - Riding a bike


 

     telephones    