KFC uses the four P's of the marketing mix - product, price, place, and promotion - to adapt to customer preferences in the fast food industry. For product, KFC offers chicken dishes as well as complementary items like soda, fries, and salads. They aim to provide quality products and excellent customer service. For price, KFC offers affordable combos to appeal to customers across income levels. Their promotion is aggressive across various media to position themselves as addressing customers' hunger. For place, KFC locations are strategically placed for convenience and provide a relaxing environment to enhance the customer experience.