Answer: The right answer is the B) Consumer.
Explanation: Just to elaborate a little on the answer, it can also be added that the word customer refers to someone that has the habit or the practice of frequenting shops and buying goods. A consumer, however, may adquire those goods, but he or she also may just use them, without purchasing them—the word derives from the Latin consumere, which literally means to use goods in order to satisfy a desire or a need. The manufacturer makes things, either by hand (manu factura in its original Latin) or with the assistance of a machine, and the designer makes the design (from the Italian disegnare).