foreign trade is the reserve of the federal government especially congress and the president. the work of admitting new states to the union is the role of the federal government through congress. The work of conducting elections is the role of the federal government as well. However, state governments are tasked with the role of local road repair.
I don't know how, but the other answer is wrong, it's not Local road repair, it's actually c conducting elections because, It wouldn't be right for the national government to have all the power. That's why the U.S. Constitution reserves certain powers for state governments. These "reserved powers" include conducting elections.
Frederick William "The Great Elector" of Brandenburg " B.Made Brandenburg the most <span>powerful and prosperous state in northern Germany" since he focused on trade. </span>