What follows is an opinion from a United States Court of Appeals. Your task is to identify the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court).

Opinion:
James Frederick RONAN, Jr., Petitioner, v. COMMISSIONER OF INTERNAL REVENUE, Respondent.
No. 6832.
United States Court of Appeals First Circuit.
March 22, 1967.
James Frederick Ronan, Jr., pro se.
Jeanine Jacobs, Attorney, Department of Justice, with whom Mitchell Rogovin, Asst. Atty. Gen., and Lee A. Jackson and David O. Walter, Attorneys, Department of Justice, were on brief, for respondent.
Before ALDRICH, Chief Judge, WOODBURY Senior Judge, and COFFIN, Circuit Judge.
By designation.
PER CURIAM.
The court has reviewed the opinion of the Tax Court and the proceedings, both before and afterwards, and finds no error. The decision is affirmed.

Question: What is the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court)?

Choices:
Trial (either jury or bench trial)
Injunction or denial of injunction or stay of injunction
Summary judgment or denial of summary judgment
Guilty plea or denial of motion to withdraw plea
Dismissal (include dismissal of petition for habeas corpus)
Appeals of post judgment orders (e.g., attorneys' fees, costs, damages, JNOV - judgment nothwithstanding the verdict)
Appeal of post settlement orders
Not a final judgment: interlocutory appeal
Not a final judgment: mandamus
Other (e.g., pre-trial orders, rulings on motions, directed verdicts) or could not determine nature of final judgment
Does not fit any of the above categories, but opinion mentions a "trial judge"
Not applicable (e.g., decision below was by a federal administrative agency, tax court)

Answer: 11