Task: songer_origin

What follows is an opinion from a United States Court of Appeals. Your task is to identify the type of court which made the original decision. Code cases removed from a state court as originating in federal district court. For "State court", include habeas corpus petitions after conviction in state court and petitions from courts of territories other than the U.S. District Courts. For "Special DC court", include courts other than the US District Court for DC. For "Other", include courts such as the Tax Court and a court martial.

PER CURIAM.
The sole question in this case is whether the United States is entitled, to retain interest collected upon an excess profits tax deficiency where such deficiency was later extinguished under § 722 of the Internal Revenue Code, 26 U.S.C.A. § 722, and the tax upon which such interest was collected was refunded to the taxpayer. The district court held that the taxpayer was entitled to the return of the interest it had paid, and granted its motion for summary judgment.
We have withheld decision pending determination of the question by the Supreme • Court. In United States v. Koppers Co. and Premier Oil Refining Co. of Texas v. United States, 348 U.S. 254, 75 S.Ct. 268, the Supreme Court on January 31, 1955 decided .the precise question adversely to the taxpayer.
Upon the authority of those decisions, it is accordingly ordered that the judgment of the district court, be and it here-1 by is reversed, and the ease is remanded, to the district court for entry of final judgment in'- favor of appellant, the United States of America.

Question: What type of court made the original decision?
A. Federal district court (single judge)
B. 3 judge district court
C. State court
D. Bankruptcy court, referee in bankruptcy, special master
E. Federal magistrate
F. Federal administrative agency
G. Special DC court
H. Other 
I. Not ascertained
Answer:

Answer: I