What is the rank of the 264th Battalion XO?

The rank of a Battalion Executive Officer (XO) is typically that of a Major, which is why this choice is correct. In a military battalion, the XO is responsible for assisting the commander in the management and operational readiness of the battalion. The position requires a level of experience and leadership that aligns with the rank of Major, as XOs are expected to have significant tactical knowledge and the ability to lead soldiers effectively.

Other ranks mentioned in the choices may hold varying responsibilities, but they do not align with the typical structured hierarchy where a Major serves as the XO. For instance, a Command Sergeant Major would typically handle senior enlisted leadership, while a Lieutenant would be at an entry-level officer rank with less experience, and a Major General is a high-ranking officer well above the battalion level. This context reinforces the appropriateness of the Major rank for the position of XO within a battalion.