Which of the Following Is an Example of Genocide

Which of the following is an example of genocide?

A) Darfur,where an estimated 400,000 ethnic Darfuris have been killed by government-sponsored militias
B) Argentina,where the military government from 1976 to 1983 murdered up to 30,000 alleged leftist sympathizers
C) The Bataan Death March,in which 6,000-11,000 soldiers died from brutal treatment and murder
D) The war during the 1998-2003 conflict in the Congo,which caused the deaths of over
5 million people