Final answer:
The primary citation for a U.S. District Court case is option D) 987 P.2d 654.
Step-by-step explanation:
The primary citation for a U.S. District Court case is option D) 987 P.2d 654.
When referring to a U.S. District Court case, the citation format typically includes the case name, volume number, reporter abbreviation, and page number. The primary citation for U.S. District Court cases is usually in the form of a volume number, reporter abbreviation, and page number.
In the given options, 987 P.2d 654 fits the format of a U.S. District Court case citation, where '987' represents the volume number, 'P.2d' represents the reporter abbreviation, and '654' represents the page number.