Pizza Hut is an American multinational restaurant chain and international franchise founded in 1958. Popular items on the Pizza Hut menu in the United States include the cheese pizza, the pepperoni pizza, the supreme pizza, the Veggie Lover's pizza, and the Meat Lover's pizza. Which of the following refers to a group of similar products, such as the various types of pizza offered by Pizza Hut, that differ only in relatively minor characteristics? Process layout Product design Production capacity Product line