If the PPF for guns and butter is bowed outward from the origin, this indicates constant opportunity cost between the two goods

The federal government granted 200 million acres of land to railroads. Which of the following statements presents accurate information about these land grants?

a. The railroads were required to return 1/3 of the profits from the sale of this land to the federal government. b. The alternate section provision allowed state governments to purchase portions of the land grants from the railroads at reduced prices. c. The system of land grant subsidies were difficult to eliminate because of public opposition. d. Congress required railroad companies that received land grants to transport mail, troops and government property at reduced rates.

Money that is acceptable because the government requires that it be accepted in payment of debt is _____

a. legal tender b. commodity money c. bad money d. backed by government's wealth e. hoarded by the people