Under what listing clause may the broker claim a commission if the owner sells to a person the broker introduced to the property within a certain time after the listing's expiration?

Which of the following results in an increase in the standard of living? a. an increase in unemployment pushes down the cost of production. b. wages go up to correct for the inflation of prices. c. income increases, enabling consumers to buy more goods and services. d. rising production costs drive up the price of goods and services.