The correct answer is <em>A). Setting up schools systems</em>.
States have the faculty to set up school systems. On the other hand, States are not able to coin money or regulate commerce. These activities are under the jurisdiction of the federal government. And with respect to declaring war, it is a competence of federal government.
But states can focus its educational efforts to improve the school systems and grant opportunities for a better education.
It's simple because it's the only answer choice that requires you to be a natural born citizen of the U.S. and according to the Constitution, it is the only answer that meets requirements.
