The correct answer is "D".
Mary McLeod Bethune was an American educator and stateswoman who engaged on social activism regarding the rights of African Americans during the beginning of the 20th century.
She is most known for founding a private school for African Americans in Daytona Beach, Florida. This school will later develop to become Bethune-Cookman University. She also was appointed as a national adviser to President Theodore Roosevelt, in what was known as his "Black Cabinet".