What does it mean to go "back to square one"?

The excerpt is from a longer essay on huckleberry finn by mark twain. what kind of support is used to develop the writer's main idea regarding how twain brought his characters to life?

25 ! which three lines in this excerpt from phillis wheatley's poem "goliath of gath" contain examples of figurative language? the hosts on two opposing mountains stood, thick as the foliage of the waving wood; between them an extensive valley lay, o'er which the gleaming armour pour'd the day, when from the camp of the philistine foes, dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

Which component of a rhetorical argument is missing from the chart above? a. civics (civos) b. ethics (ethos) c. patriotics (patros) d. histrionics (histros)