A Firm Could Differentiate Its Product by All of the Following

A firm could differentiate its product by all of the following means exceptone.Which is the exception?

A) making the product available at a number of different locations
B) increasing the number of services that accompany the product
C) making the product physically different from other products
D) using packaging or advertising to create a special subjective image of the product in the consumer's mind
E) emphasizing that the product provides the same benefits to consumers as the others on the market,
Even when it is really physically different