With no explanation, chose the best option from "A", "B", "C" or "D". connection with a “highway or related project approved by the Secretary of Transportation,” 18 U.S.C.A. § 1020, or a properly-authorized delegee of the Secretary, see 49 U.S.C.A. § 322(b) (West 1997) (providing that the Secretary of Transportation “may delegate, and authorize successive delegations of, duties and powers of the Secretary to an officer or employee of the Department” and that an officer may in turn “delegate, and authorize successive delegations of, duties and powers of the officer to another officer or employee of the Department”). Appellants assert that their convictions must be reversed because there is no evidence that the Secretary delegated his duty to approve the projects in this case to a natural person. See Halverson v. Slater, 129 F.3d 180, 185-86 (D.C.Cir.1997) (<HOLDING>). However, at trial, Mr. John Grounds testified

A: holding that an agencys policy shift reallocating the burden of proof from natural gas importers to parties opposing importation was based on a reasonable interpretation of the natural gas act
B: holding that a state was embraced within the meaning of the word person  where the word person was defined as meaning and including a partnership association company or corporation as well as a natural person
C: holding the foster parents responsible for support where the childs natural parents are unknown and noting that an earlier new york case held that an agreement to adopt did not terminate the natural parents duty of support but that in that earlier case the natural parent was alive and capable of providing for the child
D: holding that the secretary may only delegate the powers and duties of the office to a natural person not to an administration or entity other than a natural person
D.