Which statement best summarizes the career of thurgood marshall? a. after pressuring president roosevelt to integrate the defense industry, marshall pressured president truman to integrate the armed forces. b. after founding the naacp, marshall was appointed the first african american supreme court justice. c. after serving as a us army officer, marshall attended ucla and eventually became the first african american to play major league baseball. d. after working for the naacp and winning twenty-nine court cases, marshall was appointed a supreme court justice.