Ralph Lauren has gone to considerable lengths to create an overall perception of his Polo line that conveys a classic, old money, country-club image. In the 1980s, the American wine producer Gallo sought to upgrade its down-market image among wine consumers by picturing upgraded products with gourmet foods , a linen napkin, and a napkin ring, images that some consumers would associate with a more formal, upscale fining situation. Both of these examples use the principle of __to suggest to consumers that the objects are all members of a single category

a. Grouping b. Figure and Ground c. Closure d. All of the above

e. None of the above