Which position is responsible for personnel security adjudicative determinations within the Department of the Navy?

The Department of Defense Consolidated Adjudications Facility is the correct choice because it is specifically tasked with making personnel security adjudicative decisions across the Department of Defense, which includes the Department of the Navy. This facility evaluates the background investigations of individuals applying for security clearances and determines their eligibility based on established guidelines.

The other options do not hold this specific responsibility. The Director of Naval Intelligence focuses more on intelligence operations and policies rather than adjudicative determinations. The Secretary of Defense oversees the entire Department of Defense and has broad responsibilities, but does not directly engage in personnel security adjudications. The Director of Security Operations, while involved in security aspects, does not have the central role in adjudications that the Consolidated Adjudications Facility has. Each of these roles supports different facets of defense and security, but the responsibility for personnel security determinations specifically lies with the Consolidated Adjudications Facility.