because...the answer is definitely an answer
I think it is C) and D). Not sure because I just started this topic. Hope it helps :)
Southern states began seceding from the union shortly after the election of Abraham Lincoln, since he was opening against slavery and many Southerners thought he would be a threat to their way of life.
France entered World War I on August 3, 1914, when Germany declared war. France played only a small part in the diplomatic crisis of July 1914–its top leaders were out of the country from July 15 to July 29, when most of the critical decisions were taken. Germany entered into World War I on August 1, 1914, when it declared war on Russia. In accordance with its war plan, it ignored Russia and moved first against France–declaring war on August 3 and sending its main armies through Belgium to attack Paris from the north.
Citizens are treated unjustly or groups of citizens have limited representation in government.