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:
ALEXANDER et al. v. HOLMES COUNTY BOARD OF EDUCATION et al.
No. 632.
Argued October 23, 1969
Decided October 29, 1969
Jack Greenberg argued the cause for petitioners. With him on the brief were James M. Nabrit III, Norman C. Amaker, Melvyn Zarr, and Charles L. Black, Jr.
Assistant Attorney General Leonard argued the cause for the United States. With him on the memorandum was Solicitor General Griswold. A. F. Summer, Attorney General of Mississippi, and John C. Satterfield argued the cause and filed a brief for respondents other than the United States.
Louis F. Oberdorfer argued the cause for the Lawyers’ Committee for Civil Rights Under Law as amicus curiae urging reversal. With him on the brief were John W. Douglas, Bethuel M. Webster, Cyrus R. Vance, Asa Sokolow, John Schafer, John Door, Richard C. Dinkel-spiel, Arthur II. Dean, Lloyd N. Cutler, Bruce Bromley, Berl I. Bernhard, Timothy B. Dyk, and Michael R. Klein.
Richard B. Sobol and David Rubin filed a brief for the National Education Association as amicus curiae urging reversal. The Tennessee Federation for Constitutional Government filed a brief as amicus curiae.
Per Curiam.
This case comes to the Court on a petition for cer-tiorari to the Court of Appeals for the Fifth Circuit. The petition was granted on October 9, 1969, and the case set down for early argument. The question presented is one of paramount importance, involving as it does the denial of fundamental rights to many thousands of school children, who are presently attending Mississippi schools under segregated conditions contrary to the applicable decisions of this Court. Against this background the Court of Appeals should have denied all motions for additional time because continued operation of segregated schools under a standard of allowing “all deliberate speed” for desegregation is no longer constitutionally permissible. Under explicit holdings of this Court the obligation of every school district is to terminate dual school systems at once and to operate now and hereafter only unitary schools. Griffin v. School Board, 377 U. S. 218, 234 (1964); Green v. County School Board of New Kent County, 391 U. S. 430, 438-439, 442 (1968). Accordingly,
It is hereby adjudged, ordered, and decreed:
1. The Court of Appeals’ order of August 28, 1969, is vacated, and the case is remanded to that court to issue its decree and order, effective immediately, declaring that each of the school districts here involved may no longer operate a dual school system based on race or color, and directing that they begin immediately to operate as unitary school systems within which no person is to be effectively excluded from any school because of race or color.
2. The Court of Appeals may in its discretion direct the schools here involved to accept all or any part of the August 11, 1969, recommendations of the Department of Health, Education, and Welfare, with any modifications which that court deems proper insofar as those recommendations insure a totally unitary school system for all eligible pupils without regard to race or color.
The Court of Appeals may make its determination and enter its order without further arguments or submissions.
3. While each of these school systems is being operated as a unitary system under the order of the Court of Appeals, the District Court may hear and consider objections thereto or proposed amendments thereof, provided, however, that the Court of Appeals’ order shall be complied with in all respects while the District Court considers such objections or amendments, if any are made. No amendment shall become effective before being passed upon by the Court of Appeals.
4. The Court of Appeals shall retain jurisdiction to insure prompt and faithful compliance with its order, and may modify or amend the same as may be deemed necessary or desirable for the operation of a unitary school system.
5. The order of the Court of Appeals dated August 28, 1969, having been vacated and the case remanded for proceedings in conformity with this order, the judgment shall issue forthwith and the Court of Appeals is requested to give priority to the execution of this judgment as far as possible and necessary.

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: 6