Final answer:
The marketing department is responsible for advertising products and services in a business, creating campaigns to influence purchasing decisions.
Step-by-step explanation:
The part of business that is in charge of advertising products and services is the marketing department. This department focuses on strategizing and executing advertising campaigns that aim to promote the business's products or services.
The marketing office works similarly to how a public relation office promotes a show in the media, but their main objective is to reach potential customers and influence their purchasing decisions.
Although the entrepreneur behind the business may have the vision for the product or service, it is the marketing team's responsibility to communicate that vision to the public effectively.