Question

war crimes and the holocaust
when adolf hitler was appointed chancellor in germany, which of these became an official policy?
anti - semitism.
a holocaust of jewish people.
genocide of jewish people.
a special tax of all businesses.

Explanation:

When Hitler became Chancellor, anti - semitism was an official policy. The Holocaust and genocide of Jewish people were later escalations of anti - semitic ideology. A special tax on all businesses was not an immediate official policy related to Hitler's appointment as Chancellor.

Answer:

anti - semitism