What Is the Main Point of the Textbook Discussion of Milgram's

What is the main point of the textbook discussion of Milgram's obedience study?

A) When acting in a group, people will obey authority to the point of potentially causing serious harm to another person.
B) Individuals will obey authority to the point of potentially causing serious harm to another person.
C) Stanley Milgram was driven by political and personal agendas that demonstrated how research can be biased.
D) Research is only useful if it can be successfully replicated time and time again.