The Growth of Third-Party Payments (Payments by Insurers and the Government)

The growth of third-party payments (payments by insurers and the government) of healthcare services during the last four decades has been accompanied by

A) a reduction in expenditures on healthcare as a share of the economy.
B) an increase in the sensitivity of consumers to the prices of healthcare services.
C) persistent increases in the prices of healthcare services and rapid growth in the total expenditures on healthcare.
D) an increase in the incentive of suppliers to provide healthcare services at a low cost.