Respuesta :
Nearly 4 million African slaves toiled in the American South prior to the Civil War.
Option A is the summarization of the pre-civil war concerns.
The pre-civil war concerns summarize that
- During the American Civil War, slavery was a major factor.
- Many modern researchers have gathered evidence that few slaves accepted their loss of freedom or enjoyed life on the plantation.
- Slavery was the fundamental cause of secession, particularly Southern political leaders' opposition to Northern antislavery political organizations' attempts to stop slavery's growth into western territories.
For more information about the pre-civil war, refer below
https://brainly.com/question/3614264
