response: I am not sure about the most popular item. But I know that they are know for hamburgers, but also sell chicken products, cheeseburguers, french fries and many other things
original_response: Their most popular item is by far their hamburgers, but their chicken, french fries, milkshakes, and breakfast foods are also super popular.
history: hey i really like to grab some greasy food from McDonalds occasionally, do you know much about McDonalds? I do, did you know that its founding happened in 1940 in California ? wow really? by who? It was founded as a restaurant that was operated by Maurice and Richard McDonald oh cool, do they have a signature item or burger? I am not sure about that, all I know is that their business was rechristened as a hamburguer stand whats their most popular item? do they have anything like a burger with a special sauce?
knowledge: Although McDonald's is known for its hamburgers, they also sell cheeseburgers, chicken products, french fries, breakfast items, soft drinks, milkshakes, wraps, and desserts.