Final answer:
Product differentiation refers to modifying an existing product to make it stand out from competitors.
Step-by-step explanation:
Product differentiation refers to a modification to an existing product to set one brand apart from its competitors. It is a strategy used by firms to make their products distinctive from those of their competitors. This can be achieved through physical aspects of the product, location from which it sells the product, intangible aspects of the product, or perceptions of the product.