Which of the following is NOT a task associated with Army stability operations?

The correct answer highlights that a cost-benefit analysis of military expenditure is not a task typically associated with Army stability operations. Army stability operations focus on supporting the establishment and maintenance of order in a region affected by conflict or instability. This includes tasks such as supporting civil control, restoring essential services, and aiding in governance.

Support to civil control involves helping local authorities manage law and order, which is crucial in restoring security and stability. Restoring essential services is vital in fostering trust between the locals and authorities, addressing basic needs like water, health, and education. Supporting governance entails assisting local government structures to improve political stability and democratic processes.

In contrast, cost-benefit analysis of military expenditure is more related to budgeting and financial planning within military or defense contexts rather than direct operational tasks that contribute to stability on the ground. Thus, it does not fit within the framework of tasks that Army stability operations focus on.