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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.
A government that is ruled over by a religious figure or religious group is known as a theocracy, coming from the Greek word "theos" meaning "god". The word theocracy essentially means "rule by God".
Article I, Section 8 of the Constitution describes bot the "necessary" and "proper" kinds of congressional powers, since this gives Congress the right to do whatever is "necessary and proper" to carry out their duties.