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:
UNITED STATES v. PARKE, DAVIS & CO.
No. 526.
Decided January 23, 1961.
-F. Supp.-, judgment vacated and cause remanded.
Solicitor General Rankin, Assistant Attorney Géneral Bicks, Daniel M. Friedman and Richard A. Solomon for the United States.
Gerhard A. Gesell, Edward S. Reid, Jr. and Roberts B. Owen for appellee.
Per Curiam.
When this case was last here we held that the Government’s proofs were sufficient to show that Parke Davis violated the Sherman Act. However, in reversing the District Court’s judgment we remanded the case with direction to afford Parke Davis a further opportunity to submit evidence in defense in order to refute the Government’s right to injunctive relief. United States v. Parke, Davis & Co., 362 U. S. 29, 49. On remand, Parke Davis introduced evidence not to rebut the Government’s proof as to violation but only to show that it had abandoned its illegal sales policy, and that therefore an injunction, being unnecessary, should not issue. On that record the District. Court entered an order denying not only the injunctive relief sought by the Government, but also an adjudication that Parke Davis had violated the law. The present appeal is not from the provision which denies injunctive relief, but from the omission of a provision adjudging that Parke Davis violated the Act. We have examined the record as supplemented on the remand and hold that under our prior order the Government is entitled to a judgment on the merits, as prayed in paragraph 1 of the section of the Complaint captioned “Prayer.” We also hold that the District Court should retain the case on the docket for future action in the event the Government applies for further relief from an alleged resumption by Parke Davis of illegal activity. The order of the District Court filed July 18, 1960, is therefore vacated and the case is remanded to the District Court with direction to enter judgment accordingly.
It is so ordered.
MR. Justice Harlan, with whom Mr. Justice Frankfurter agrees, would place this case on the summary calendar for argument, postponing to the merits consideration of the question of jurisdiction raised by the-respondent.

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