President johnson announced that the union was restored in april 1865. december 1865. july 1868. february 1870.

December 1865

so the answer is B

hope this helps

December 1865 is the correct answer

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

d. it adversely affected american productivity