Fact 1: Atelephone is used for communication by humans over long distances.

Fact 2: Open water races of 5 to 25 kilometers are offered to long distance swimmers.

Given the two facts above, answer the question "A telephone is used for communication by humans between what span?" with the following options: 
- 25 kilometers or more
 - members of their own species
 - global ecosystems
 - 5 centimeters
 - 1 meter
 - Males and females
 - A set number of times
 - 4 microns


 

 25 kilometers or more        