It helped bring the South back.
It ended the war.
IT FREED THE SLAVES
Foreign Policy since treaty's do deal with other nations but usually after tensions or conflicts, embargo is a part of trade so for instant an embargo tax, and trade section has to deal with embargo's so the best choice is Foreign Policy.
Changes in the money supply affect people and businesses in a variety of ways. The size of the money supply can increase and decrease the cost of borrowing or the rate of interest thus making it easier or harder for businesses and individuals to borrow money. Also the size of the money supply or a nation's monetary policy can influence inflation and the growth of an economy which influences both individuals and businesses as well.