Answer :
Answer:
(B) ending serfdom
Explanation: hope this helps !
“In St. Petersburg, Czar Alexander II signed the famous manifesto with provisions on February 19, 1861, the act on liberation of the peasants. Two years later, at the height of the Civil War, President Lincoln on January 1, 1863, in Washington, signed the no less famous Emancipation Proclamation freeing the slaves.”