Final answer:
A CO/OIC may be able to delay a Navy-Wide Advancement Exam under specific conditions and for a certain number of days, as stipulated by Navy personnel regulations.
Step-by-step explanation:
The question refers to how many days a Commanding Officer (CO) or Officer in Charge (OIC) may delay a Navy-Wide Advancement Exam (NWAE). Based on Navy regulations and the context in which this question is presented, it appears to be relating to the policies surrounding the administration of advancement exams within the United States Navy. However, specific guidelines on exam administration delays should be referenced from the most current Navy advancement or personnel manuals or instructions because they may change over time. Commands might be able to delay the exam under certain conditions, typically for operational reasons or unforeseen circumstances, and there are usually strict procedures and timelines to follow when requesting such delays.