Concept:The biophilia hypothesis states that humans have an innate emotional connection with nature.
It suggests that being separated from nature can harm mental well-being.
Explanation:Biologists like E.O. Wilson proposed that humans naturally need contact with nature.
When this contact is missing, people may suffer psychologically and experience reduced well-being.
Option A is incorrect because the hypothesis does not blame biological organisms for psychological disorders.
Option B is incorrect because the hypothesis is not an experimental design about city families.
Option C correctly captures the idea: separation from nature leads to unhappy or unhealthy mental states.
Option D is too broad because it merely describes a philosophy about humans and nature without the specific psychological claim.
Answer:Option C is the correct answer.