(will give brainliest answer) in addition to voting for seccession, what else did south carolina propose at its state convention held following the election of 1860?
a.) it called for a confederacy of the southern states.
b.) it called for the impeachment of president lincoln.
c.) it called for a recount of popular votes.
d.) it called for a recount of electoral votes.

The best answer is A.) It called for a confederacy of the Southern states.

In a last-ditch effort to preserve the institution of slavery, against federal restrictions, eleven southern states seceded from the Union and created a separate Confederate nation. South Carolina and the other states had a constitutional right to secede from the Union to protect their sovereign rights, including the right to own slaves and to transport them into the western territories. Southerners had long claimed that federal tariffs and taxes discriminated against their region. With  the election of the Republican Lincoln, they were convinced that the federal  government would continue to “oppress” them and abridge their “states’ rights.” One of those “rights” was the right to secede from the Union.

d) a constitutional amendment

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).