Which function of the targeting process executes the attack guidance and supports the commander's battle plan?

The function of the targeting process that executes the attack guidance and supports the commander's battle plan is delivering. This phase is essential because it involves putting into action the plans and strategies developed earlier in the targeting cycle. During this stage, the intended targets are attacked according to the predetermined procedures, utilizing allocated resources effectively to achieve the operational objectives laid out by the commander.

The delivery of attacks ensures that the commander's vision and strategy are implemented in a cohesive manner, allowing for the effective execution of the operation. By delivering strikes as per the intelligence and planning phases, forces can achieve the desired impact on the enemy while contributing directly to the overarching battlefield objectives.

Assessing involves evaluating the effectiveness of actions after they have been taken, while planning is focused on developing the strategies and identifying the targets. Engaging typically refers to the maneuvering forces and initiating contact with the enemy in combat situations. Thus, while each part of the targeting process is critical, delivering is the function that culminates the efforts of planning and integrates attack guidance to support the battle plan.