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:
Leonard S. BERMAN, Appellant, v. Marjorie M. BERMAN, a/k/a Marjorie M. Wise, and David Wise, Jr., Appellees.
No. 12699.
United States Court of Appeals District of Columbia Circuit.
Argued Oct. 25, 1955.
Decided Nov. 23, 1955.
Mr. Victor A. DeLeon, Washington, D. C., for appellant.
Mr. Alvin L. Newmyer, Washington, D. C., with whom Mr. Alvin L. Newmyer, Jr., Washington, D. C., was on the brief, for appellees. Mr. David G. Bress, Washington, D. C., also entered an appearance for appellees.
Before EDGERTON, Chief Judge, and WILBUR K. MILLER and BASTIAN, Circuit Judges.
PER CURIAM.
On January 13, 1954, in the District of Columbia, appellee Marjorie got a judgment against appellant, who was then her husband, for separate maintenance (“alimony”) and also for maintenance of their minor childfen. She got a divorce from appellant in Nevada January 19, 1954, and married appellee Wise September 15, 1954. On November 24, 1954, our District Court amended its judgment of January 13 by striking the award of alimony. Though this amendatory judgment relieving appellant of his obligation to pay alimony was entered “by consent”, he afterwards filed the present suit for a declaratory judgment that the Nevada divorce is void. The District Court did not err or abuse its discretion in dismissing the complaint.
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: 4