Which statement describes a developing theme in roll fo thunder, hear my cry ?

Roll of Thunder, Hear My Cry, written by Mildred Taylor, tells the story of a young African American girl called Cassie, who lives in the Deep South during the early 1900s, an era marked by racism and economic struggle.

Thus, the novel shows the social and economic differences between African Americans and whites in Mississippi during that time, with the consequent decreases in the quality of life for black people; and the way a little girl, Cassie, begins to realize these differences and accept her reality, not without difficulties.