Which of the following is included in the Operating Forces of the Army?

The Operating Forces of the Army are primarily composed of units that are directly involved in the conduct of operations, which includes both combat arms and support units. Combat arms encompass critical units such as infantry, armor, artillery, and aviation, which engage in direct combat and are essential for mission success on the battlefield. Support units play a vital role in enabling these combat arms to operate effectively by providing necessary logistics, maintenance, and medical services. This comprehensive integration of combat and support units allows the Army to function cohesively as a fighting force, making option B the correct choice.

In contrast, the other choices do not fit within the definition of Operating Forces. Generative personnel units are not a recognized classification of units focusing on operations. Administrative units, while essential for maintaining organization and readiness, do not directly engage in combat or operational missions. Strategic planning groups, while important in the decision-making and planning stages of operations, fall under a different category that supports rather than constitutes the Operating Forces.