What follows is an opinion from the Supreme Court of the United States. Your task is to identify the type of decision made by the court among the following: Consider "opinion of the court (orally argued)" if the court decided the case by a signed opinion and the case was orally argued. For the 1791-1945 terms, the case need not be orally argued, but a justice must be listed as delivering the opinion of the Court. Consider "per curiam (no oral argument)" if the court decided the case with an opinion but without hearing oral arguments. For the 1791-1945 terms, the Court (or reporter) need not use the term "per curiam" but rather "The Court [said],""By the Court," or "By direction of the Court." Consider "decrees" in the infrequent type of decisions where the justices will typically appoint a special master to take testimony and render a report, the bulk of which generally becomes the Court's decision. This type of decision usually arises under the Court's original jurisdiction and involves state boundary disputes. Consider "equally divided vote" for cases decided by an equally divided vote, for example when a justice fails to participate in a case or when the Court has a vacancy. Consider "per curiam (orally argued)" if no individual justice's name appears as author of the Court's opinion and the case was orally argued. Consider "judgment of the Court (orally argued)" for formally decided cases (decided the case by a signed opinion) where less than a majority of the participating justices agree with the opinion produced by the justice assigned to write the Court's opinion.

Opinion:
TEXAS v. NEW MEXICO
No. 65,
Orig.
Argued March 24, 1980
Decided May 19, 1980
Douglas G. Caroom, Assistant Attorney General of Texas, argued the cause for plaintiff. With him on the briefs were Mark White, Attorney General, John W. Fainter, Jr., First Assistant Attorney General, and Ted L. Hartley, Executive Assistant Attorney General.
Richard A. Simms, Special Assistant Attorney General of New Mexico, argued the cause for defendant. With him on the briefs were Jeff Bingaman, Attorney General, and G. Emlen Hall, Charles M. Tansey, and Jay F. Stein, Special Assistant Attorneys General.
Solicitor General McCree filed a memorandum for the United States as intervenor.
Per Curiam.
Upon consideration of the report filed October 15, 1979, by Senior Judge Jean S. Breitenstein, Special Master, and the exceptions thereto, and on consideration of briefs and oral argument thereon,
It Is Adjudged, Ordered, and Decreed that all exceptions are overruled, the report is in all respects confirmed, and the ruling of the Special Master on the “1947 condition” as that term appears in Arts. II (g) and III (a) of the Pecos River Compact is approved.

Question: What type of decision did the court make?

Choices:
opinion of the court (orally argued)
per curiam (no oral argument)
decrees
equally divided vote
per curiam (orally argued)
judgment of the Court (orally argued)
seriatim

Answer: 4