A decision matrix chart is a useful tool for A. estimating how much something will cost
B. figuring out if an author is credible
C. choosing which sources to use
D. analyzing the information you have gathered

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.

answer: ‘no one should be discriminated against because he or she is not from a minority group’

because—> affirmative action means ‘a policy or program that provides opportunities for traditionally disadvantaged groups to them overcome the effects of discrimination’

answer; promote the individual as a "progressive being";