What, in your view, is a rational behavior if you want to eat lunch $($objective$)$ in the next half hour $($constraint$)$ given that you are at McDonald's $($constraint$)$ and you have $$10$ in your pocket $($constraint$)?$ What is irrational behavior? How would your rational decision change if you don$$t know what you are buying $($i$.$e$.$ the menu simply is a list of numbers with prices that you must choose from$)?$ How would you decide what and how much to buy given this limited information $($bounded rationality$)?$