The agency must demonstrate that it conducts accrediting activities within—

(a) A State, if the agency is part of a State government;

(b) A region or group of States chosen by the agency in which an agency provides accreditation to a main campus, a branch campus, or an additional location of an institution. An agency whose geographic area includes a State in which a branch campus or additional location is located is not required to also accredit a main campus in that State. An agency whose geographic area includes a State in which only a branch campus or additional location is located is not required to accept an application for accreditation from other institutions in such State; or

(c) The United States.