Product differentiation is:

a. the legal requirement that requires a specified degree of distinction between products to ensure an organization's intellectual property rights.
b. a good, service, or idea consisting of a bundle of tangible and intangible attributes that satisfies consumers' needs.
c. a marketing strategy using different marketing mix actions to help consumers perceive the product as being different and better than competing products.
d. the unique combination of product benefits received by targeted buyers.
e. those characteristics of a product that make it superior to competitive substitutes.