What follows is an opinion from a United States Court of Appeals.
Intervenors who participated as parties at the courts of appeals should be counted as either appellants or respondents when it can be determined whose position they supported. For example, if there were two plaintiffs who lost in district court, appealed, and were joined by four intervenors who also asked the court of appeals to reverse the district court, the number of appellants should be coded as six.
When coding the detailed nature of participants, use your personal knowledge about the participants, if you are completely confident of the accuracy of your knowledge, even if the specific information is not in the opinion. For example, if "IBM" is listed as the appellant it could be classified as "clearly national or international in scope" even if the opinion did not indicate the scope of the business. 

Your task concerns the first listed appellant. The nature of this litigant falls into the category "private business (including criminal enterprises)". Your task is to classify the scope of this business into one of the following categories: "local" (individual or family owned business, scope limited to single community; generally proprietors, who are not incorporated); "neither local nor national" (e.g., an electrical power company whose operations cover one-third of the state); "national or multi-national" (assume that insurance companies and railroads are national in scope); and "not ascertained".

Opinion:
NATIONAL BRICK & SUPPLY COMPANY, Inc., and Hudson Supply & Equipment Company, Appellants, v. William E. BAYLOR et al., Trustees, Mt. Joy Baptist Church, Appellees. Abraham GRUNSTEIN et al., Partners, t/a Columbia Building Products Company, Appellants, v. William E. BAYLOR et al., Trustees, Mt. Joy Baptist Church, Appellees.
Nos. 17760, 17761.
United States Court of Appeals District of Columbia Circuit.
Argued Oct. 29, 1963.
Decided Nov. 14, 1963.
Mr. Mark P. Friedlander, Jr., Washington, D. C., with whom Messrs. Mark P. Friedlander and Blaine P. Friedlander, Washington, D. C., were on the brief for appellant National Brick & Supply Co. Inc., in No. 17,760, argued for all appellants.
Mr. George H. Windsor, Washington, D. C., with whom Mr. George E. C. Hayes, Washington, D. C., was on the brief, for appellees.
Mr. Dexter M. Kohn, Washington, D. C., was on the brief for Hudson Supply & Equipment Co., appellant in No. 17.760.
Mr. George Greenberg, Washington, D. C., was on the brief for Columbia Building Products Co., appellant in No. 17.761.
Mr. David S. Scrivener, Washington, D. C., entered an appearance for appellees, Scrivener and Crowell.
Before Prettyman, Senior Circuit Judge, and Wilbur K. Miller and Burger, Circuit Judges.
PER CURIAM.
In these cases the appellants, who were subcontractors on a construction project which was abandoned by the prime contractor before completion, seek to enforce mechanic’s liens upon the alleged balance of the contract price which remained unexpended after the owner had completed the work, as permitted by § 38-104, D. C. Code (1961). These cases are here for the second time. Reference is made to our opinion on the first appeal for a statement of the facts and issues.
The owner claimed that, in finishing the work after the prime contractor abandoned it, it had been necessary to expend more than the unpaid balance of the contract price at the time of abandonment, as a result of which there was no fund in which the subcontractors were entitled to share. The latter claimed that the owner had erroneously included in its computation the sum of $4,375 allegedly paid to another subcontractor for replacing equipment he had previously furnished and installed, but later had tortiously removed; that, with that amount eliminated, there was more than enough left in the owner’s hands to satisfy their liens which aggregated about $4,000.
We held, inter alia, that any amount paid the wrongdoing subcontractor for doing what he was already bound to do could not be regarded as a part of the expense of finishing the work. On remand, the District Court had the task of determining the amount, if any, paid by the owner to the wrongdoer. After hearing evidence the court held that the amount so paid was $800 instead of $4,375 as claimed by the appellants; and that, as a result, the unexpended portion of the contract price in which the claiming subcontractors are entitled to share ratably is $660. Judgment having been entered accordingly, the lienholders again appeal.
Although there was conflict in the evidence, it contained support for the findings of the trial judge and therefore we cannot say the findings are clearly erroneous. Hence the judgment appealed from must be upheld.
Affirmed.
. National Brick & Supply Co. v. Baylor, 112 U.S.App.D.C. 73, 299 F.2d 454 (1962).

Question: This question concerns the first listed appellant. The nature of this litigant falls into the category "private business (including criminal enterprises)". What is the scope of this business?

Choices:
local
neither local nor national
national or multi-national
not ascertained

Answer: 3