Answer:
The correct answer is letter "D": customer.
Step-by-step explanation:
Companies tend to segment their markets according to features inherent in their customers. Age, gender, income, location, or profession are variables considered to classify consumers. After the study firms choose which sectors the company will produce goods or render services.
Marriot's customer segmentation in cafeterias, airlines, hotels, and fast-food restaurants shows the company's interest in providing specialized service in different scenarios.