I believe the answer is: B: A written set of laws that was sophisticated and detailed.
The code of Hammurabi was really well preserved on top of a stone tablet. It details various set of laws that regulates the type of criminal acts that were banned by the Hammurabi along with the specific punishments for the people who were proven to violate the laws. The punishment was considered to be really harsh even by past's standards in order to ensure citizen's obedience.
