How did President Truman's Executive Order 9981 serve as a turning point for political platforms? A) Truman's executive order abolished voting discrimination and led to his reelection based on overwhelming African American support. B) Truman's executive order allowed separate, but equal treatment of African Americans causing South Carolina to support a Democratic candidate instead of their usual Republican ticket. C) Truman's executive order allowed African Americans to attend nonsegregated schools allowing him to gain support in northern states, but leading to racial violence and a conservative Republican opposition. D) Truman's executive order abolished discrimination in the US Armed Forces allowing him to gain support from African American voters, but led to South Carolina voting for Strom Thurmond after voting Democratic for six decades.