By what methods did germany and japan seek to impose a new world order? this is wwii and holocaust topic.

By establishing their race as the new superior race. Hitler want to make the world acknowledge Aryan race as the most superior race in the world while Japan want to became the most superior race in Asia. They do this with several  ways :
- By trying to become the world's new super power, replacing United states' and Uni Soviet's position
- By exterminating the race they seem as a hindrance, that's why Hitler was killing the Jews

It's most likely choice a, it makes the most sense in my opinion.

C. is the answer ur welcome