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:
MISSISSIPPI v. LOUISIANA.
No. 11,
Original.
Argued October 11, 1955, on exceptions to the Report of the Special Master.
Decree entered October 17, 1955.
D. K. McKamy served as Special Master by appointment of the Court, 346 U. S. 862.
Gerard H. Brandon and James D. Thomas, Special Assistant Attorneys General, argued the cause for the State of Mississippi, plaintiff. With them on the brief were J. P. Coleman, Attorney General, and Clarence Clifton and Charles Kohlmeyer, Associate Attorneys.
Ashton L. Stewart, Special Assistant Attorney General, argued the cause for the State of Louisiana, defendant. With him on the brief were Fred S. LeBlanc, Attorney General, John L. Madden, Assistant Attorney General, and Edgar H. Lancaster, Jr. and Lane Fuller, Special Assistant Attorneys General.
DECREE.
This cause having been submitted upon the pleadings, evidence and exhibits after arguments by counsel upon the exceptions of the State of Louisiana to the Report of the Special Master, the Court, having duly considered the same and being fully advised in the premises, now enters the following order:
The exceptions to the Report of the Special Master are overruled. The Report of the Special Master is adopted and his proposed decree is approved and
It is Ordered, Adjudged and Decreed that the true boundaries between the States of Mississippi and Louisiana at the places involved in this case be and they hereby are found and concluded to be as follows:
Description by geodetic positions (North American Datum) of the line that forms the Mississippi-Louisiana state boundary between Latitude 32° 15' and 32° 09' and Longitude 90° 58' to 91° 07', that is, in the area commonly known as Reed-Bedford, Oak Bend, Diamond Island and Diamond Point.
Beginning at a point where the live thalweg of the Mississippi River crosses the line 32° 15' North Latitude;
Thence Southward along the live thalweg of the Mississippi River to a point where the live thalweg crosses the line that runs South 60° East from the point that is at Lat. 32° 11' 34" — Long. 90° 59' 47".
Thence leaving the thalweg of the Mississippi River and running North 60° West to the point being at Lat. 32° 11' 34" — Long. 90° 59' 47";
Thence running Westward along the dead thalweg of the abandoned channel of the Mississippi River (lower Oak Bend) to a point that is at Lat. 32° 11' 29" — Long. 91° 00' (S-5, Smith Exhibit 5).
Thence leaving the dead thalweg of the abandoned channel of lower Oak Bend and running Northward (along the Suter line, Smith Exhibit 5) to a point that is at Lat. 32° 11' 46" — Long. 91° 00' 09" (S-4, Smith Exhibit 5);
Thence Northward to a point that is at Lat. 32° 11' 51" — Long. 91° 00' 11" (S-3, Smith Exhibit 5);
Thence Northward to a point that is at Lat. 32° 12' 44" — Long. 91° 00' 20" (S-2, Smith Exhibit 5);
Thence Northward to a point that is at Lat. 32° 13' 09" — Long. 91° 00' 14" (S-l, Smith Exhibit 5);
Thence Northward to a point that is at Lat. 32° 13' 21" — Long. 91° 00' 10" (S, Smith Exhibit 5).
Thence running Westward along the dead thalweg of the abandoned channel of the Mississippi River that loops around the Northern side of Diamond Island (Diamond Island Towhead) to a point that is at Lat. 32° 13' 22"— Long. 91° 00' 13";
Thence Westward to a point that is at Lat. 32° 13' 26" — Long. 91° 00' 22";
Thence Westward to a point that is at Lat. 32° 13' 31" — Long. 91° 00' 30";
Thence Westward to a point that is at Lat.' 32° 13' 36" — Long. 91° 00' 37";
Thence Westward to a point that is at Lat. 32° 13' 44" — Long. 91° 00' 47";
Thence Westward to a point that is at Lat. 32° 13' 49" — Long. 91° 00' 53";
Thence Westward to a point that is at Lat. 32° 13' 55" — Long. 91° 01';
Thence Westward to a point that is at Lat. 32° 14' — ■ Long. 91° 01' 05";
Thence Westward to a point that is at Lat. 32° 14' 09" — Long. 91° 01' 15";
Thence Westward to a point that is at Lat. 32° 14' 17" — Long. 91° 01' 29";
Thence Westward to a point that is at Lat. 32° 14' 23" — Long. 91° 01' 43";
Thence Westward to a point that is at Lat. 32° 14' 29" — Long. 91° 02';
Thence Westward to a point that is at Lat. 32° 14' 32" — Long. 91° 02' 16";
Thence Southward to a point that is at Lat. 32° 14' 31" — Long. 91° 02' 33";
Thence Southward to a point that is at Lat. 32° 14' 26" — Long. 91° 02' 48";
Thence Southward to a point that is at Lat. 32° 14' 16" — Long. 91° 03';
Thence Southward to a point that is at Lat. 32° 14' 00" — Long. 91° 03' 06";
Thence Southward to a point that is at Lat. 32° 13' 54" — Long. 91° 03' 08" (“C” Smith Exhibit 5).
Thence running Southward (along Smith line “C” Exhibit 5) to the point that is Lat. 32° 13' 41" — Long. 91° 03' 10" (C — 1 Smith Exhibit 5) ;
Thence Southward to the point that is at Lat. 32° 13' 31" — Long. 91° 03' 16" (C-2 Smith Exhibit 5);
Thence Southward to the point that is at Lat. 32° 13' 07" — Long. 91° 03' 40" (C-3 Smith Exhibit 5).
Thence running Westwardly along the dead thalweg of the abandoned channel of the Mississippi River (lower Oak Bend) to the point that is at Lat. 32° 13' 23" — Long. 91° 04';
Thence Westwardly to a point, Lat. 32° 13' 37" — Long. 91° 04'30";
Thence Westwardly to a point, Lat. 32° 13' 35" — Long. 91° 05';
Thence Westwardly to a point, Lat. 32° 13' 26"- — Long. 91° 05' 30";
Thence Westwardly to a point, Lat. 32° 13' 04" — Long. 91° 06';
Thence Westwardly to a point, Lat. 32° 12' 30" — Long. 91° 06' 28";
Thence Westwardly to a point at the head of Palmyra Lake and Kellogg Lake (where the Northern and Western boundary of Diamond Point ends and which is point of beginning of the Southern boundary of Diamond Point), Lat. 32° 12' 24" — Long. 91° 06' 44";
Thence Westwardly along the thalweg of Palmyra Lake to a point, Lat. 32° 12' 26" — Long. 91° 07'.
That portion of the Southern boundary of Diamond Point that also forms the Mississippi-Louisiana state boundary is described as follows:
Beginning at the thalweg of the Mississippi River at the lower end of Diamond Point Cut-off at a point, being at Lat. 32° 09' 46" — Long. 91° 00' (Smith Exhibit 5) ;
Thence Westwardly along the dead thalweg of the abandoned channel of the Mississippi River and so-called Kellogg Lake to a point, Lat. 32° 09' 43" — Long. 91° 00' 30";
Thence Westwardly to a point, Lat. 32° 09' 40" — Long. 91° 01';
Thence Westwardly to a point, Lat. 32° 09' 45" — Long. 91° 01'30";
Thence Westwardly to a point, Lat. 32° 10' — Long. 91° 01' 52";
Thence Westwardly to a point, Lat. 32° 10' 07" — Long. 91° 02';
Thence Westwardly to a point, Lat. 32° 10' 27" — Long. 91° 02' 29";
Thence Westwardly to a point, Lat. 32° 10' 41" — Long. 91° 03';
Thence Westwardly to a point, Lat. 32° 10' 50" — Long. 91° 03' 30".
The following portion of this description is inserted here to complete the Southern boundary of Diamond Point and to join the two portions of the Mississippi-Louisiana state boundary:
Thence continuing Westwardly along the dead thalweg in the abandoned channel of the Mississippi River and so-called Kellogg Lake to a point, Lat. 32° 10' 54" — Long. 91° 04';
Thence Westwardly to a point, Lat. 32° 11' — Long. 91° 04' 18";
Thence Westwardly to a point, Lat. 32° 11' 03" — Long. 91° 04'30";
Thence Westwardly to a point, Lat. 32° 11' 11" — Long. 91° 05';
Thence Westwardly to a point, Lat. 32° 11' 25" — Long. 91° 05' 30";
Thence Westwardly to a point, Lat. 32° 11' 44" — Long. 91° 06';
Thence Westwardly to a point, Lat. 32° 12' — Long. 91° 06' 10";
Thence Westwardly to a point, Lat. 32° 12' 07" — Long. 91° 06' 15";
Thence Westwardly to a point, Lat. 32° 12' 20" — Long. 91° 06' 30";
Thence Westwardly to a point, Lat. 32° 12' 24" — Long. 91° 06' 44" (being the point at the head of Palmyra Lake and Kellogg Lake where the Northern and Western boundary of Diamond Point ends and joins with the Southern boundary of Diamond Point).
The costs of this suit are equally divided between the two States, plaintiff and defendant.

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