I believe<em> D) all of the above</em> were an outcome of the Spanish American War.
One way in which President Andrew Johnson and President Bill Clinton are similar is that both were 4. acquitted by the Senate after being impeached. Andrew Johnson was impeached after removing his Secretary of War from office, breaking a law which stated the President could not remove Secretaries from the Cabinet without Congressional approval. Bill Clinton was impeached after it was discovered he lied under oath; when asked if he had had intimate relations with a White House aide, Monica Lewinsky, he stated "no," but then it was discovered that was false. However, both remained President because neither were found guilty by the Senate.
<span>Despite his personal opposition to slavery, when President Abraham Lincoln took office in 1861 he insisted that his constitutional duty was to keep the nation together, not to abolish slavery. He conducted the first year of the war with the goal of reuniting the Union, but wartime events, including heavy military losses and the many slaves who escaped behind Union battle lines, forced him to contend with the issue of slavery. He issued a preliminary Emancipation Proclamation on September 22, 1862 and the final version on January 1, 1863, fundamentally changing the meaning of the war.</span>
Martin Luther
i had the same question on my test!
Hope this helps:)
The Kansas-Nebraska Act let the issue of slavery be decided by the states via popular sovereignty.