When the selling price of a good goes up, what is the relationship to the quantity supplied? a. the cost of production goes down. b. the profit made on each item goes down. c. it becomes practical to produce more goods. d. there is no relationship between the two.

The answer is c. It becomes practical to produce more goods.

The correct answer is C.

The supply function represents the quantity of a certain good or service that producers are willing to offer in the market at different price levels. The law of supply states that there is a direct relationship between price and quantity supplied (ceteris paribus, hence, given that the rest remains equal).

Therefore, when the price charged increases, the amount that producers are willing to offer increases.