Plateau because of the fresh water I think
The correct answer is Sigmund Freud. His studies on psycho-neuroses around the 20th century is considered to be the basis of psychology and psychiatry.
Is there a question or no
Answer:negative correlation
Explanation:
This is a correlation where there is an opposite relationship between two variables which means when one variable increases the other variable decreases.
He studied a relationship between sex satisfaction and the length of marriage and the result showed that people who have been married long were no longer sexually satisfied.
So as the years of marriage increased, sexual satisfaction decreased which shows opposite relation between these two variables.