The promotion and selling of products or services.

• A. Marketing Mix
• B. Market Orientation
• C. Moving Average
• D. Marketing

Answer: (D)

The key idea here is identifying the term for the activities involved in promoting and selling products or services. Marketing is the field that covers planning, promoting, selling, and delivering offerings to customers, as well as researching needs and shaping how a firm reaches its market. It directly describes the overall process of getting products or services to customers, including the promotion and sales aspects.

The other options are more specific or different in scope. The marketing mix is a framework within marketing—the four Ps (product, price, place, promotion) used to plan how a product is marketed. Market orientation is about adopting a customer-centered approach in strategy. A moving average is a statistical method used for smoothing data, not related to marketing at all.