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:
GRIFFIN et al. v. COUNTY SCHOOL BOARD OF PRINCE EDWARD COUNTY et al.
No. 592.
Decided January 6, 1964.
Robert L. Carter and S. W. Tucker for petitioners.
Robert Y. Button, Attorney General of Virginia, R. D. Mclhoaine III, Assistant Attorney General, Frederick T. Gray, Collins Denny, Jr., John F. Kay, Jr., C. F. Hicks and J. Segar Gravait for respondents.
Solicitor General Cox, Assistant Attorney General Marshall and Harold H. Greene for the United States, as amicus curiae, in support of the petition.
Per Curiam.
This ease is one of the school segregation cases which we dealt with nearly a decade ago in Brown v. Board of Education, 347 U. S. 483, 349 U. S. 294. After remand, numerous opinions were written by the District Court and the Court of Appeals but the mandate issued at the time of the Brown case has never been implemented. In 1956 the Board of Supervisors decided not to levy taxes or appropriate funds for integrated public schools; and white children have attended white-only schools operated by the Prince Edward School Foundation, which has received state support. The District Court enjoined allowance of such support (198 F. Supp. 497) and held that the public schools could not remain closed while public schools in other counties stayed open. 207 F. Supp. 349. Thereafter litigation was instituted in the Virginia courts which resulted, in a ruling by the Virginia Supreme Court of Appeals that the Virginia Constitution compels neither the State nor the county to reopen the public schools in Prince Edward County or to furnish funds for that purpose. 204 Va. 650, 133 S. E. 2d 565. The Court of Appeals, prior to that decision, vacated the judgment of the District Court with instructions to abstain from further proceedings until the Virginia state decision became final (322 F. 2d 332) — a judgment which was stayed by Mr. Justice Brennan on September 30,1963, “pending the timely filing and disposition of a petition for a writ of certiorari.” The case is here on a petition for cer-tiorari which raises not only the propriety of the judgment of the Court of Appeals insofar as it directed the District Court to abstain until the Virginia courts had acted, but other issues going to the merits.
In view of the long delay in the case since our decision in the Brown case and the importance of the questions presented, we grant certiorari and put the case down for argument March 30, 1964, on the merits, as we have done in other comparable situations without waiting for final action by the Court of Appeals. See 28 U. S. C. § 1254 (1); Youngstown Co. v. Sawyer, 343 U. S. 579, 584; Wilson v. Girard, 354 U. S. 524, 526.
See 249 F. 2d 462, reversing 149 F. Supp. 431; 266 F. 2d 507, reversing 164 F. Supp. 786.

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