Which of the following pairs of goods are most likely to be considered complements?

In economics, complementary goods are products that are often used together, meaning that when the demand for one increases, the demand for the other also tends to increase. A classic example of complementary goods is peanut butter and jelly; if more people buy peanut butter, many will also buy jelly to enjoy with it. This relationship happens because these items enhance each other's use and experience. On the other hand, substitute goods are those that can replace each other, like butter and margarine, where an increase in the price of one might lead more people to buy the other instead. Understanding these relationships helps businesses and consumers make better choices based on how products interact with one another.