Where did the Nazis carry out most of the murders that were the main part of a final solution? A. In death camps B. In slave labor camps C. In ghetto D. In Polish cities

A. In death camps

Explanation:

During the Holocaust the Nazi Army carried out most of their murders in their death camps, also known as Extermination Camps or Killing Centers. The Nazi Army would use these camps to murder about 2.7 million Jews during the Holocaust. This was their main part of their final solution where they would torture and kill any and all that were different or stood against the Nazi Army. More predominantly Jews and Homosexuals.

answer; /// i believe that the correct answer is (a) making presentations;

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.