Supremacy Clause is the cause of Constitution that resolves conflicts between state law and national law. It is important because it affirms that the Constitution is the supreme law of the land.
I'm going to say C since I looked up the question, but warning you , I may be wrong
Judicial review is basically to determine whether the acts of other components of the government are in accordance with the constitution. In simpler terms, to make sure laws and actions are constitutional
The president must give the bill congress sent an approval for it to become a law; If the president gives the bill a veto it can not pass as a law.
