Task: songer_circuit

What follows is an opinion from a United States Court of Appeals. Your task is to identify the circuit of the court that decided the case.

PER CURIAM.
This case was dismissed by the District Court apparently on the ground of res judicata, the court taking judicial notice of the previous case between the parties, the details of which are spelled out in Gullo v. Veterans Cooperative Housing Association, 1957, 101 U.S.App. D.C. 167, 247 F.2d 573.
In all its essential particulars, the present action is the same as that of the previous case, and the District Court correctly applied the doctrine of res judi-cata.
While the defense of laches was interposed, it is not necessary that we pass on that issue.
Affirmed.

Question: What is the circuit of the court that decided the case?
A. First Circuit
B. Second Circuit
C. Third Circuit
D. Fourth Circuit
E. Fifth Circuit
F. Sixth Circuit
G. Seventh Circuit
H. Eighth Circuit
I. Ninth Circuit
J. Tenth Circuit
K. Eleventh Circuit
L. District of Columbia Circuit
Answer:

Answer: L