Final answer:
If the income of video game players increases, d) both the equilibrium price and quantity in the market for video games will increase.
Step-by-step explanation:
Equilibrium price and quantity refer to the point in a market where the demand for a good or service equals its supply, establishing a balance between buyers and sellers. At this equilibrium, the market-clearing price and quantity are determined, ensuring that all units offered by producers are bought by consumers. Changes in demand or supply can shift the equilibrium, leading to adjustments in price and quantity.
In the market for video games, if the income of video game players increases, it will result in an increase in demand for video games. This can be seen as a shift in the demand curve to the right. As a result, both the equilibrium price and quantity will increase.