Final answer:
A) Before Selection Board Convenes
A commanding officer can withdraw an advancement recommendation before the selection board convenes, after the board results are released, and before the advancement ceremony. Once the ceremony has occurred, advancements are typically official.
Step-by-step explanation:
When a member is no longer qualified for advancement, the commanding officer/officer in charge can withdraw the advancement recommendation at multiple points. However, the most appropriate and common point for withdrawal is before the Selection Board convenes (Option A). This step ensures that the candidate who is no longer eligible does not continue into the advancement process unnecessarily. It is also possible in certain circumstances to withdraw the recommendation after the Selection Board results release (Option B) and before the Advancement Ceremony (Option C). Generally, once the Advancement Ceremony has occurred (Option D), the advancement is considered official and more difficult to reverse, except through a formal process that might involve administrative actions or disciplinary measures, should the need arise for such actions.