He is the one that said "I have not failed, I have just found 10,000 ways that will not work."
Long after the United States abolished slavery in 1865, Black Americans still face systemic racism. There are several events in American history that point to the lasting impact of slavery and the Tulsa Race Massacre is an important one for students to learn about. Unfortunately, Oklahoma is the only state that requires the teaching of this devastating historical event in public schools, and the official legislation to make the curriculum universal across the state only began this year.
The answer to your question is C. I just took the test and i got c as the correct answer.