A group of lists titled United States History, table of contents. The first list is labeled Unit 1, Colonial America with entries Spanish exploration and settlement, French colonization, English/British Colonial America. Second list is labeled Unit 2, Civil War Era with entries Causes of the war, Secession, The Confederacy, The war begins, Reconstruction. What features in the visual would help you when previewing? a. Bold font c. Bullets b. Titles d. All of the above