Why Was the Nuremberg Code Adopted

Why was the Nuremberg Code adopted?

A) The Milgram study created harm to the participants, and this code acted to prevent it from happening again.
B) The Stanford prison experiment violated human rights and needed to be addressed.
C) The research conducted by the Nazis during World War II created a need for guidelines.
D) The Nuremberg trials created so many different questions about ethics that they designed the guidelines for clarity.