Which function focuses on promoting and selling products or services?

The function that focuses on promoting and selling products or services is marketing. Marketing encompasses a variety of activities designed to understand customer needs and preferences, develop products or services that meet those needs, and effectively communicate the value of those products or services to potential customers. This includes advertising, public relations, sales strategies, and market research, all aimed at driving customer engagement and ultimately increasing sales.

In contrast, finance is primarily concerned with managing an organization's monetary resources, accounting deals with the systematic recording and reporting of financial transactions, and production focuses on creating and delivering the actual goods or services a business offers. Each of these functions plays a vital role in a company's overall operations, but marketing is specifically geared toward attracting and retaining customers through effective promotion and sales efforts.