Concept:Goods that require payment are known as economic goods.
Explanation:Economic goods are scarce in relation to their demand.
They are not freely available in nature, so human effort is needed to obtain them.
Because they are scarce, buyers have to pay a price to own them.
Examples include food, clothing, and housing.
On the other hand, free goods are available without any payment.
Therefore, goods that have to be paid for are economic goods.
Answer:B. economic goods