The correct answer is A. sales department.
A revenue center is a business unit that generates revenue for the company. The sales department is responsible for selling the company’s products or services to customers. The other options are not revenue centers.
B. Investing center is a business unit that is responsible for investing the company’s money.
C. Marketing department is responsible for creating and executing marketing campaigns to promote the company’s products or services.
D. Segment department is responsible for dividing the company’s customers into different segments based on their characteristics.