Answer:
First African American President
Explanation:
C. It acts as the final authority on the constitutionality of state and federal laws.
The Supreme Court is the final judge in all cases arising under the laws stated in the Constitution. It acts as guardian and interpreter of the Constitution, therefore it is responsible to tell whether or not a law of a state breaks a rule in it, if a law passed by Congress is unconstitutionally and if the President's action is violating a law.