The correct answer is: D. The appropriateness of a product would depend on its features.
A product is a good or service that is offered for sale or use. It can be tangible, such as a car or a piece of clothing, or intangible, such as a service or a piece of software. Products are created to satisfy human needs and wants. They can be differentiated from each other by their features, quality, price, and brand.
The appropriateness of a product depends on a number of factors, including the needs of the user, the context in which the product will be used, and the budget of the user. For example, a car that is appropriate for a family with young children may not be appropriate for a single person who lives in the city.
A. A product can be differentiated, but a commodity cannot. This is correct. A product can be differentiated from other products by its features, quality, price, and brand. A commodity, on the other hand, is a good or service that is not differentiated from other goods or services of the same type.
B. Products are need satisfiers. This is correct. Products are created to satisfy human needs and wants.
C. Product is an end by itself. This is incorrect. A product is not an end by itself. It is a means to an end. The end is the satisfaction of a human need or want.