There are three central organizational functions to every product development project: marketing, design, and manufacturing. The marketing function consists of the interactions between the organization and the customers, which includes setting target prices and overseeing the launch and promotion of a new product. The design function determines the physical form of the product. This includes the engineering design, such as mechanical and electrical issues, as well as the industrial design, which includes aesthetics and user interfaces. The manufacturing function is responsible for designing and operating the system for producing the product. This function includes purchasing, distribution, and installation. From the information given above, it can be validly concluded that: A. An organizational function determines the physical form of a product if and only if it addresses mechanical and electrical issues. B. There are product development projects in which the physical form of the product need not be determined before target prices are set. C. Whenever an organization is determining the physical form of a developing product, it is performing a design function. D. There are at least some product development projects in which the marketing function does not set target prices or launch and promote the product.