Which river valley civilization is located next to the letter B on this map?

answer; /// i do believe that the correct answer is (d) majority vote as an approval requirement;

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.

hey,

i hope you are having a wonderful day

the correct answer is :

{b.}   ( american workers lose job opportunities )

hope this : )

    -sprinkles