Fact 1: Animals can communicate with sounds, chemicals, or visual cues.

Fact 2: Unlike animal communication, properly human communication is abstract and linguistic in nature.

Given the two facts above, answer the question "how do humans communicate?" with the following options: 
- simply
 - electrically
 - sensory neurons
 - by indirect light
 - firm hugs
 - smell
 - linguistically
 - touch


 

       linguistically  