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:
LOUISIANA v. MISSISSIPPI et al.
No. 14,
Original.
Argued November 16, 1965.
Decided April 18, 1966.
John L. Madden and Edward M. Carmouche, Assistant Attorneys General of Louisiana, argued on the exceptions to the Report of the Special Master on behalf of the plaintiff. With them on the briefs were Jack P. F. Gremittion, Attorney General, Carroll Buck, First Assistant Attorney General, and John A. Bivins, Special Counsel to the Attorney General.
Marlin R. McLendon, Assistant Attorney General of Mississippi, and Landman Teller, Special Assistant to the Attorney General, argued on the exceptions to the Report of the Special Master on behalf of the defendants. With them on the briefs were Joe T. Patterson, Attorney General, and George W. Rogers, Jr.
M. M. Roberts, Bernard J. Caillouet and E. L. Brunini filed a brief for Humble Oil & Refining Co. in support of its exceptions to the Report of the Special Master.
Per Curiam
and Decree.
Upon consideration of the Report filed June 7, 1965, by Senior Judge Marvin Jones, Special Master, and the exceptions thereto, it is now adjudged, ordered, and decreed as follows:
(1) All exceptions are overruled and the Report is in all things confirmed.
(2) The true boundary between the States of Louisiana and Mississippi in the area of the Mississippi River known as Deadman’s Bend on the several dates mentioned is determined to be as follows:
At all times the live thalweg has been the true boundary.
On October 3, 1952, the live thalweg was a gradually curving line running southward from the foot of Glass-cock Cutoff, and east of the future location of Louisiana State Well No. 1 by 230 feet, to the end of Deadman’s Bend at range 334.5 AHP. This line is described below by latitude and longitude and is drawn on Special Master Exhibit No. 1.
On April 10, 1964, the live thalweg was a gradually curving line running southward from the foot of Glass-cock Cutoff, and west of Louisiana State Well No. 1 by 850 feet, to the end of Deadman’s Bend at range 334.5 AHP. This line is described below by latitude and longitude and is drawn on Special Master Exhibit No. 1.
At all times between October 3, 1952, and April 10, 1964, the live thalweg has moved at a constant rate. The boundary location for any intervening period at any point in Deadman’s Bend (from the foot of Glasscock Cutoff to range 334.5 AHP) is to be determined mathematically by calculating the constant rate of change for that particular place in Deadman’s Bend, using the 1952 and 1964 thalwegs described heretofore and the appropriate time differentials.
At the latitude of Louisiana State Well No. 1 the location of the boundary was as follows from October 3, 1952, to April 10, 1964:
October 3, 1952 ................ 230 feet east of well
April 27, 1954 .................. 80 feet east of well
February 27, 1955.............. Directly above the well
April 10, 1956.................. 102 feet west of well
April 10, 1957.................. 195 feet west of well
April 10, 1958.................. 289 feet west of well
April 10, 1959.................. 382 feet west of well
April 10, 1960.................. 476 feet west of well
April 10, 1961.................. 569 feet west of well
April 10, 1962 .................. 663 feet west of well
April 10, 1963 .................. 756 feet west of well
April 10, 1964.................. 850 feet west of well
The Louisiana State Well No. 1 became located inside the boundary of Mississippi on February 28, 1955.
The description of the October 3, 1952, live thalweg by geodetic positions (North American Datum) is as follows:
Beginning at the foot of Glasscock Cutoff at a point on range 338.3 AHP, which is Lat. 31°19'07.0"— Long. 91°30'33.5".
Thence running southward through the following points:
Latitude Longitude
91°30'37.0" 31°18'57.5"
91°30'39.0" 31018'47.5"
91°30'40.0" 31°18'37.0"
91°30'39.5" 3V1&'27.W'
91°30'39.0" 31°18'17.0"
91°30'38.0" 31°18'07.0"
91°30'38.0" 31°17'57.5"
91°30'38.0" 31°17/47.0"
91°30'37.0" 31°17/37.0,/
91°30'36.5" 31° 17'27.0"
91°30'36.0" 31°17'17.0"
91°30'35.0" 31°17,07.0"
91°30'33.5" 31016'57.5"
91°30'32.5" 31°16'4:7.0"
91°30'34.0" 31°16'42.5"
91°30'37.0" 31°16'38.0"
91°30'43.0" srie^ob"
91°30'51.0" 31°16,22.5,/
91°31'00.0" 31016'17.0"
9io3i'io.o" 31°16'12.0"
91°31'21.0" 31°16,08.0"
91°31'32.0" 31°16'05.5"
91o31'42.0" 31016'03.5"
The description of the April 10, 1964, live thalweg by geodetic positions (North American Datum) is as follows:
Beginning at the foot of Glasscock Cutoff at a point on range 338.3 AHP, which is Lat. 31°19'07.0"— Long. 91°30'38.5".
Thence running southward through the following points:
Latitude Longitude
91°30'40.5" 31°18'57.5"
91°30'42.5" 3i°i8'48.o"
91°30'44.0" 31°18'38.0"
91°30'46.0" 31°18'28.0"
91°30'47.0" 3i°i8T8.5"
91°30'48.5" 31°18'08.5"
91°30'50.0" 31°17'59.0"
91°30'52.0" 31°17'49.0"
91°30'52.5" 31°17'39.0"
91°30'52.5" 31°17'29.5"
91°30'52.5" 31°17/20.0'/
91°30'52.0" 31°17'10.0"
91°30'52.0" 31°17'00.5"
91°30'52.5" 31°16'51.0"
91°30'53.0" 31°16'41.0"
91°30'55.0" 31°16'36.0"
9i°30'58.0" 31°16'32.0"
91°31'04.5" 31°16'24.0"
91°31'11.5" 31°16'16.0"
91°31'18.5" 3i°i6'09.0"
91°31'28.0" 31°16'03.0"
91°31'38.0" 31°15'59.0"
(3) As it appears that the Special Master has completed his work, he is hereby discharged with the thanks of the Court.
(4) The costs of this suit are to be equally divided between the two States.

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