Which of the following fails to meet the legal definition of a mass atrocity?

A.) war crimes
B.) genocide
C.) ethnic cleansing
D.)crimes against humanity

A.) war crimes

is that right ?

I apologize for the confusion. The correct answer is actually C.) ethnic cleansing. While ethnic cleansing is a severe violation of human rights and often involves mass violence and displacement, it is not specifically defined as a crime under international law like war crimes, genocide, and crimes against humanity.