Not all Europeans supported slavery. Many decent people spoke out against it. But they were unable to stop slavery for centuries. How do you think the people who participated in the slave trade supported their position against these critics? Was it pure racism?
Think about what their arguments might have been.

answer; i believe the above is (false)

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.

during the nancy. probs