Final answer:
Fast food restaurants offering diverse menu items are addressing the economic question of 'What to produce' based on consumer demand and seasonal availability of ingredients.
Step-by-step explanation:
Fast food restaurants that offer a range of menu items like hamburgers, chicken sandwiches, salads, and French fries are addressing the fundamental economic question of What to produce. This question is part of the three basic economic questions every society must answer: what should we produce, how should we produce it, and for whom should we produce it.
The variety of menu items is based on the demand and supply mechanism that reflects consumer preferences and the availability of seasonal ingredients, which may affect pricing and availability. For instance, fresh corn might be cheaper and more available in midsummer and thus could be featured in seasonal specials.
By offering diversified menu items, fast food restaurants aim to cater to a wide range of tastes and dietary requirements, which can attract more customers and respond to their needs efficiently.