The correct answer is D) A group of siblings who learn about the effect of the civil rights movement on their family.
Based on the text preview as well as research about the background of the novel and the author's life, a reader can predict the novel will mostly be about a group of siblings who learn about the effect of the civil rights movement on their family.
We are referring to the novel "The Watsons go to Birmingham-1963," written by American author Christopher Paul Curtis in 1995. It refers to the story of a family that lives in Michigan and decides to spend some time with the grandmother, in Birmingham, Alabam, during the difficult times of racism in the South and the activism of the civil rights movement.