Final answer:
When a firm successfully employs a blue ocean strategy, it creates a competitive advantage by winning market share with a highly differentiated product. Option b.
Step-by-step explanation:
When a firm is able to successfully employ a blue ocean strategy, it will create a competitive advantage by winning market share with a highly differentiated product (b). Blue ocean strategy involves creating a new market space or uncontested market by offering unique value to customers, different from what competitors are offering. By focusing on differentiation, firms can attract customers and command premium prices, setting themselves apart from competitors.