What is the message that the author is sending I the thing they carried

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.

delete this question pls it wont let me exit out

its c i google it wish u luck

b) the bill goes to the president.

hope this