Task: songer_casetyp1_7-3-4

What follows is an opinion from a United States Court of Appeals.
Your task is to identify the issue in the case, that is, the social and/or political context of the litigation in which more purely legal issues are argued. Put somewhat differently, this field identifies the nature of the conflict between the litigants. The focus here is on the subject matter of the controversy rather than its legal basis.
Your task is to determine the specific issue in the case within the broad category of "economic activity and regulation - bankruptcy, antitrust, securities". 

PER CURIAM.
This is an appeal from an order of the district court denying the petition of the appellant trustee in bankruptcy to intervene as of right in an action pending in that court. Despite the ingenious arguments of able counsel for the appellant, we are of the opinion that the court was not in error in denying the petition. Upon the reasoning of Judge Starr’s thoroughly considered opinion and the authorities cited therein, the order of the district court is affirmed. Vaughan v. Dickinson, D.C. 19 F.R.D. 323.

Question: What is the specific issue in the case within the general category of "economic activity and regulation - bankruptcy, antitrust, securities"?
A. bankruptcy - private individual (e.g., chapter 7)
B. bankruptcy - business reorganization (e.g., chapter 11)
C. other bankruptcy
D. antitrust - brought by individual or private business (includes Clayton Act; Sherman Act; and Wright-Patman)
E. antitrust - brought by government
F. regulation of, or opposition to mergers on other than anti-trust grounds
G. securities - conflicts between private parties (including corporations)
H. government regulation of securities
Answer:

Answer: A