What was one aspect of racial purity laws?
jews were forced to participate in german education programs.
aryan germans were required to report all new births to the government.
marriages between germans and jews were prohibited.
women were required to attend university to increase their knowledge of german history.

Marriages between Germans and Jews were prohibited was one aspect of Racial Purity laws

The racial policy of Nazi Germany included policies and laws implemented in Nazi Germany (1933–45) based on a specific racist doctrine asserting the superiority of the Aryan race, which claimed scientific legitimacy.

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

the enslaved people onboard suffered from illness with some frequency

besides the fact that abraham lincoln abolished slavery, and greatly benefit black people, he had a heavy impact of the definition of what democracy was, and should be.