Which of the following are combined commands used in military formations?

The correct answer highlights combined commands that are commonly used in military formations. These commands are vital for maintaining order and discipline among personnel, ensuring that movements are executed cohesively and efficiently.

The commands listed in the correct answer serve specific purposes in military formations. For instance, "Rest" allows Marines to relax while remaining in a formation, "At ease" permits a more relaxed posture while still being ready to respond, "Fall in" instructs Marines to gather and assume their formation, "Fall out" allows them to exit the formation, and "Dismissed" indicates the conclusion of an event or formation, permitting Marines to leave.

These commands are fundamental to how personnel organize and behave in a formation, making them essential for maintaining military discipline and structure across various scenarios.

Other options may include commands that are less focused on forming up or maintaining ranks, or that refer to general movement rather than specific formations. For example, while some commands may be useful in various contexts, they don't necessarily pertain to the structure and behavior within a military formation in the same explicit manner as those in the correct answer.