Final answer:
Under a decentralized system, the advertising department is generally a part of marketing services . Option D
Step-by-step explanation:
In a decentralized system, the advertising department is generally a part of marketing services (D). This is because marketing services encompass the various strategies and activities aimed at promoting and selling products or services, inclusive of the creation and dissemination of advertisements.
It is essential for advertising teams to closely work with other parts of the marketing division, such as market research, product development, and sales strategies, to ensure a coherent and effective market presence. Option D