Rice is a cheap staple food eaten several times a day by many people all over the world. in trufflelandia, residents also eat expensive mushrooms known as truffles once every year as a birthday celebration. rice keeps the people alive and truffles are not necessary for sustaining their lives. why is rice so cheap and truffles so expensive?
a truffles taste better, so they are worth more money.
b rice is easy to cook, so people buy a lot of it. if people are going to buy so much, then it has to be cheap.
c truffles are more nutritious, and healthy food is always more expensive than unhealthy food.
d people eat so much rice that an additional serving of rice has little marginal value, but the marginal value of another serving of truffles is very high.