Which of these did frederick douglass use in his writing to build creditability or ethos? a. slang b. sparse detail c. emotional language d. objectivity

Frederick douglass  (born  frederick augustus washington bailey;   c. february 1818[4]  – february 20, 1895[5]) was an american social reformer, abolitionist,  orator, writer, and  statesman. after escaping from  slavery  in maryland, he became a national leader of the  abolitionist  movement in massachusetts and new york, gaining note for his oratory[6]  and incisive antislavery writings. in his time, he was described by abolitionists as a living counter-example to slaveholders' arguments that slaves lacked the intellectual capacity to function as independent american citizens.[7][8]  northerners at the time found it hard to believe that such a great orator had once been a slave.[9]