Which of the following is a secondary source? a. a documentary movie b. a letter written by an historic figure c. a u. s. history textbook d. an article written by an eye-witness

*ill give best answer brainliest*read the excerpt below and answer the question. we did not know, as yet, which was the better side, right or left, which road led to prison and which to the crematoria. still, i was happy, i was near my father. our procession continued slowly to move forward. another inmate came over to us: “satisfied? ” “yes,” someone answered. “poor devils, you are heading for the crematorium.” he seemed to be telling the truth. not far from us, flames, huge flames, were rising from a ditch. something was being burned there. a truck drew close and unloaded its hold: small children. babies! yes, i did see this, with my own eyes . . children thrown into the flames. (is it any wonder that ever since then, sleep tends to elude me? ) so that was where we were going. a little farther on, there was another, larger pit for adults. what is the conflict portrayed in this excerpt from elie wiesel’s night? select all that apply. the external conflict between the nazis and the jews the external conflict between the nazis and the allies the external conflict between wiesel and the inmate the internal conflict between wiesel’s memory of the burning bodies and his desire for peaceful sleep