Answer: B
Explanation: Before the Civil War, cotton not cattle was the most important. economic feature of the South.
After Stalin died in 1953, the number of people sent to the gulag "<span>c. decreased dramatically," since Stalin was a primary proponent of sending political dissenters, any anyone he felt threatened by to the Gulag as punishment. </span>
the 13th Amendment abolished the slavery, the 14th was effectively a bill of rights, guaranteeing the new black citizens their political and legal equality, the 15th stated in unambiguous terms that citizens' Rights had not to be limited by "race, color or previous condition of servitude".