Ah, just took this test! I will kindly give you a hand.
Here's a hint.
It's everything except 'B'
Colorism-skin tone discrimination in America is basically discrimination based on someones skin color. It's a form of prejudice in which people are treated differently based on the social meanings and connotations attached to their skin color. However, It's not really a synonyms for racism, even though it seems like it.
Hope that helps :)