Final answer:
A PR model is essential in designing and implementing a PR campaign because it provides structure, clear conceptual understanding, and allows for easier adjustments. It is helpful for any size organization to guide their PR strategies effectively.so the correct answer is option A.
Step-by-step explanation:
The necessity of using a PR model in the design and implementation of a PR program or campaign is because PR models provide structure and guidance. These models serve as a blueprint for planning and executing strategies that align with organizational goals and stakeholder expectations.
They enable program managers to conceptualize the 'what' and 'why' behind their actions, ensuring that the campaign is understandable, strategically sound, and effectively communicates its message to the intended audience.
Additionally, having a well-planned PR model facilitates smooth adjustments and improvements during the campaign. Contrary to some misconceptions, PR models are not exclusive to large organizations; they are equally applicable and beneficial to smaller entities seeking to establish or enhance their public relations efforts.