Which of the Following Best Describes the Value Chain of a Company

Which of the following best describes the value chain of a company?

A) touchpoints at which a company or brand interacts with its consumers
B) profits earned by the cash cows and stars in the company's business portfolio
C) the collection of businesses and products that make up the company
D) a network made up of the company, its suppliers, and its distributors working together to deliver customer value
E) the series of departments that design, produce, market, deliver, and support the company's products