The correct answer is B) the abolition of slavery.
All of the following are current issues in civics EXCEPT the abolition of slavery.
A current event is something actual, in the present, that is affecting society now. The abolition of slavery occurred in the past. It is a past event that happened at the end of the Civil War (1861-1865), where the Union Army defeated the Confederated Army. It is an important part of United States history. But it's long gone.