Final answer:
Option d is the correct answer. The lampshade made from tattooed human skin was entered into the record primarily to illustrate the callousness and inhumanity of the Nazis during the Holocaust, serving as undeniable evidence of the atrocities committed.
Step-by-step explanation:
The physical evidence of a lampshade made from tattooed human skin was most likely entered into the record during the trials to show the callousness of the Nazi officials who perpetrated such atrocities. This horrific artifact serves as a tangible proof of the dehumanization and brutality inflicted upon the victims of the Holocaust. This type of evidence complements documental evidence to convey the systematic and inhumane nature of the Nazi crimes against humanity.
While proving murder and identifying victims could also be functions of entering such evidence, the overarching purpose in the context of the Nuremberg Trials was undoubtedly to illustrate the sheer cruelty and moral depravity represented by such items. The inclusion of physical evidence like this also served to prevent any future denial of these crimes, ensuring the truth of the Holocaust would be undeniable and preserved for history.