In the late nineteenth century, immigrants from which two countries were the largest groups to move to the United States? Choose exactly two answers that are correct.

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.

it's the under parts of the car

answer; the negotiator was not in full control of his or her actions and hence should not be held responsible;