What is the region shaded in green on the map above known as? A. the Indus River Valley
B. the Fertile Crescent
C. the Nile River Valley
D. the Great Plains

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

answer; make a no-nonsense accusation of the other;