A B
D)
Which letter on this map represents the center of power of the Byzantine Empire?
)
B)
B
C)
C
D)
D

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.

no the answer is c only objects touching the earth's surface can be acted upon by an outside force