I believe the answer is b
Explanation:
Jefferson's belief in the necessity of ending slavery never changed. From the mid-1770s until his death, he advocated the same plan of gradual emancipation. First, the transatlantic slave trade would be abolished.
C because the influence events are the one that know that are right
Shortly after 10 p.m. on April 14, 1865, actor John Wilkes Booth entered the presidential box at Ford's Theatre in Washington D.C., and fatally shot President Abraham Lincoln. As Lincoln slumped forward in his seat, Booth leapt onto the stage and escaped through the back door. A doctor in the audience rushed over to examine the paralyzed president. Lincoln was then carried across the street to Petersen's Boarding House, where he died early the next morning.