What follows is an opinion from a United States Court of Appeals. Your task is to identify the federal agency (if any) whose decision was reviewed by the court of appeals. If there was no prior agency action, choose "not applicable".

Opinion:
MILWAUKEE AMERICAN ASSOCIATION v. K. M. LANDIS et al.
No. 4586.
Circuit Court of Appeals, Seventh Circuit.
Dec. 31, 1931.
G. M. Peters, of Chicago, Ill., for appellant.
Leslie M. O’Connor, of Chicago, Ill., for appellee.
Before ALSCHULER, EVANS, and SPARKS, Circuit Judges.
PER CURIAM.
On motion of counsel for appellants, it is now here ordered, adjudged, and decreed, by this court that this appeal be, and the same is hereby, dismissed, with costs.

Question: What federal agency's decision was reviewed by the court of appeals?

Choices:
Benefits Review Board
Civil Aeronautics Board
Civil Service Commission
Federal Communications Commission
Federal Energy Regulatory Commission
Federal Power Commission
Federal Maritime Commission
Federal Trade Commission
Interstate Commerce Commission
National Labor Relations Board
Atomic Energy Commission
Nuclear Regulatory Commission
Securities & Exchange Commission
Other federal agency
Not ascertained or not applicable

Answer: 9