<span>It used U-boats to sin ships carrying supplies to Britain</span>
<span>the economies of the nations of the world are closely linked. (you welcome)</span>
Jonas was likely a A.) Federalist and a E.) supporter of James Madison. Federalism divided power among the various levels of government, promoting a weaker central government, which allows for a more capitalistic economic system, allowing Jonas to own his own private business. Because of this, it's clear that Jonas was likely a supporter of James Madison, a man who promoted federalism and helped to write The Federalist Papers.
The two years prior to World War I in the region of the Balkans saw the rising of Serbian nationalistic Groups. Later came the assassination of the Archduke Ferdinand in the Balkan City of Sarajevo, main cause of the war.