Differentiation is made up of

Product differentiation is a marketing strategy that strives to distinguish a company's products or services from the competition. Successful product differentiation involves identifying and communicating the unique qualities of a company's offerings while highlighting the distinct differences between those offerings and others on the market. Product differentiation goes hand-in-hand with developing a strong value proposition to make a product or service attractive to a target market or audience.

The answer is a if u read the definition it makes sense