Final answer:
As corn prices rise and salsa sales fall, this is an example of Complementary Goods, where the price change of one good affects the demand for a related good that is usually used together with the first good.
Step-by-step explanation:
As corn prices rise, salsa sales tend to fall - this situation describes what happens when the price of one good affects the demand for a related good. In this case, the correct answer is A) Complementary Goods.
Complementary goods are goods that are often used together, where consumption of one good tends to enhance consumption of the other. An example of this would be peanut butter and jelly; when the price of peanut butter rises, you would generally see a decrease in the demand for jelly as well. In the case of salsa, if salsa includes corn as an ingredient or is commonly enjoyed with corn-based products, a rise in corn prices could result in a decrease in the demand for salsa because the overall cost of consuming both products together increases.
Changes in the price of complements see a corresponding shift in the demand for those goods. For instance, if the price of notebooks falls, we might expect the demand for complementary goods like pens or pencils to increase as people buy more notebooks and, therefore, need more pens or pencils.