let's say the popeyes menu has a total of 159 food items that are divided into 13 categories In which a full meal mostly consists of 3 items(side/fries, drink, sandwich/chicken), how many options there would be? Does order matter? Is this a permutation or combination?

I need these questions answered. if any doubt, let me know. you can answer it either as permutation or combination which ever is possible

thanks