Tactical doctrine can best be exemplified by which of the following scenarios?

Tactical doctrine refers to the actions and strategies employed to achieve specific objectives within a broader framework. The scenario that best exemplifies tactical doctrine is when a military commander plans a long-term campaign. This option embodies the essence of tactical doctrine where decision-making is guided by the tactical application of resources, planning, and adaptability to achieve predetermined goals in a complex environment.

In this context, a military commander analyzes various factors such as terrain, enemy capabilities, and available resources to devise effective strategies that will lead to success in a military operation. This approach reflects the principles of tactical doctrine, focusing on achieving specific outcomes through thoughtful planning and execution.

While the other options involve decision-making processes, they do not emphasize the strategic planning and operational considerations inherent in tactical doctrine. The focus on qualities in a car purchase, for example, is more about personal preference than the systematic approach required in military campaigns.