Which of the Following Illustrates a Firm That Has Achieved

Which of the following illustrates a firm that has achieved competitive advantage through flexibility?

A) A firm that creates customized products based on each of its customer's preferences
B) A firm that produces goods by maintaining high quality standards
C) A firm that ensures speedy delivery of goods compared to its competitors
D) A firm that develops products with unique features that are not made available by any of its competitors
E) A firm that develops timely new products