What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.

Opinion:
ARIZONA v. CALIFORNIA et al.
No. 8,
Original.
Decided June 3, 1963.
Decree entered March 9, 1964.
Amended Decree entered February 28, 1966.
Mark Wilmer for plaintiff.
Thomas C. Lynch, Attorney General of California, Northcutt Ely, Special Assistant Attorney General, Burton J. Gindler and David B. Stanton, Deputy Attorneys General, C. Emerson Duncan II, Jerome C. Muys, Roy H. Mann, Earl Redwine, Harry W. Horton, R. L. Knox, James H. Carter, Charles C. Cooper, Jr., John H. Lauten, H. Kenneth Hutchinson, Roger Arnebergh, Gilmore Tillman, Edward T. Butler, Harvey Dickerson, Attorney General of Nevada, and Robert E. Jones, Deputy Attorney General, for defendants.
Solicitor General Marshall for the United States, intervenor.
Ordered.
The joint motion to amend Article VI of the Decree in this case entered on March 9, 1964, is hereby granted and Article VI of said decree is hereby amended to read as follows:
VI. Within three years from the date of this decree [March 9, 1964], the States of Arizona, California, and Nevada shall furnish to this Court and to the Secretary of the Interior a list of the present perfected rights, with their claimed priority dates, in waters of the mainstream within each State, respectively, in terms of consumptive use, except those relating to federal establishments. Any named party to this proceeding may present its claim of present perfected rights or its opposition to the claims of others. The Secretary of the Interior shall supply similar information, within a similar period of time, with respect to the claims of the United States to present perfected rights within each State. If the parties and the Secretary of the Interior are unable at that time to agree on the present perfected rights to the use of mainstream water in each State, and their priority dates, any party may apply to the Court for the determination of such rights by the Court.
The Chief Justice and Mr. Justice Fortas took no part in the consideration or decision of this motion.

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 2