When was genocide officially labeled a crime?
a. in 1941 when lemkin moved to the united states from poland
b. in 1943 when lemkin used genocide in a quote
c. in 1945 shortly after the end of wwii
d. in 1948 as granted by the un

Option: d. in 1948 as granted by the UN

Explanation:

After witnessing the horrors of the Holocaust by Nazi German on the Jews, political prisoners and other ethnic groups like gypsies. United Nation labelled genocide as a crime under the UN Convention in 1948, which came into effect in 1951. The efforts of Raphael Lemkin, a Jewish-Polish lawyer, played a significant role in making genocide recognized as a crime under international law.  

d) a constitutional amendment