3.During the election of 1860, Abraham Lincoln A.defeated a strong Democratic opponent. B.promised to abolish slavery throughout the nation. C.did not win the support of any Southern states. D.did not win the support of any Northern states. 4.The Emancipation Proclamation issued by President Lincoln A.triggered the start of the Civil War. B.was supported by both Northern and Southern states. C.freed all enslaved people under Confederate control. D.was prompted by the Dred Scott decision.