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:
SCHMIDT et al., dba SCHMIDT & POLLARD v. OAKLAND UNIFIED SCHOOL DISTRICT et al.
No. 81-1444.
Decided June 21, 1982
Per Curiam.
California Educ. Code Ann. § 39640 (West Supp. 1982) requires school districts to award any contracts for work involving more than $12,000 to the “lowest responsible bidder.” For projects over $100,000, the Oakland School District requires that to be considered responsible, general contractors must use minority-owned businesses for at least 25 percent of the dollar amount of the total bid. Petitioners submitted the low bid for an advertised project but were disqualified under the School District plan as not being responsible. They brought this action claiming damages and asserting that the affirmative-action plan violated not only the Federal Constitution but also state law. The Court of Appeals affirmed a judgment of the District Court upholding the plan on constitutional grounds. 662 F. 2d 550 (1981). Although the Court of Appeals acknowledged that under one of its prior decisions, the plan at issue might be invalid under state law, it declined to decide the state-law question since it was a sensitive matter and petitioners could present it to the state courts.
If the affirmative-action plan is invalid under state law, the Court of Appeals need not have reached the federal constitutional issue. Nevertheless, the Court of Appeals declined to resolve the pendent state-law claim. Under Hagans v. Lavine, 415 U. S. 528, 546 (1974), and Mine Workers v. Gibbs, 383 U. S. 715 (1966), this was an abuse of discretion in the circumstances of this case.
We accordingly grant the petition for certiorari, vacate the judgment of the Court of Appeals, and remand the case for further proceedings consistent with this opinion.
So ordered.

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