Final answer:
The detailed answer provides a context to the military history subject matter but notes the lack of information needed to definitively answer the question about the number of officers in a CDU-trained lieutenant's platoon.
Step-by-step explanation:
The question regarding the minimum number of officers in a platoon commanded by a CDU-trained lieutenant is related to military structure and organization, which falls within the realm of Military History and is typically encountered at the college level where advanced military studies or military history might be taught.
Military formation and command structure are integral to the function and discipline of an army, as noted in point 44: "If in training soldiers commands are habitually enforced, the army will be well-disciplined; if not, its discipline will be bad." Moreover, the historical context of leadership and troop composition, as described in the U.S. military structure and the Legion's organization, underscores the importance of understanding how units are broken down into cohorts, centuries, and smaller squads, just as in any modern military unit including platoons.
Unfortunately, without a specific doctrinal context or a standard organizational chart relevant to the question, providing a factual answer to the multiple-choice question regarding the number of officers in a CDU-trained lieutenant's platoon is not possible. Military organizations vary from one country to another and even change over time within the same military. Therefore, the correct answer could only be ascertained within the specific context of the military structure in question, which is not provided here.