SAT Inferences Question

In 1951, Ethel Payne, known as the First Lady of the Black Press, began writing for the esteemed Sengstacke newspapers, which included the Chicago Defender. Payne's accomplishment is just one example of the rich history of Black journalist in the United States. That history is preserved by the National Association of Black Journalists, which was founded in Washington, DC, in 1975 to support Black media professionals and honor people like Payne. According to the text, where was the National Association of Black Journalists founded?