I would change certain laws that I thought were incorrect or unfair (though I would have to get permission from Congress first). Also, I would look at the people (citizen's of the US)'s view on things and I would help everyone to be somewhat satisfied. It would take a lot of work, however.
The answer is A. growing quickly and becoming more advanced.
Answer:
D) the supremacy of federal over state law
Explanation:
The Supremacy Clause of the Constitution of the United States (Article VI, Clause 2), establishes that the Constitution, federal laws made pursuant to it, and treaties made under its authority, constitute the "supreme Law of the Land", and thus take priority over any conflicting state laws.