Answer:
a differentiation advantage
Step-by-step explanation:
This scenario best illustrates a differentiation advantage. This is basically when a company is able to offer a product that, despite being the same as the competitor's product, is slightly different or offers something that the competitors do not. This small difference is what attracts the customers and increases profits. In this case, Fashion Mart Corp is differentiating their product by providing a guarantee of quality, which the competitors offering similar products cannot offer.