Which of These Is NOT a Result of the Civil

Multiple Choice

Which of these is NOT a result of the Civil War Amendments' constitutional changes?

A) States could secede from the union.
B) Slavery was abolished.
C) Former male slaves and their descendents were given the right to vote.
D) Guarantees were put in place against arbitrary or unfair government action.
E) Equal protection of the laws was guaranteed for all citizens.