To date, the longest prison sentence for violating the Sherman Act has been ________ years.

Medical service by physicians

A) could be made a free good through universal health insurance. B) is a good for which the demand is completely inelastic. C) is a good for which there is no satisfactory substitute. D) would become a free good if physicians did not charge monetary fees. E) would cost some patients more in non-monetary terms than they now pay if physicians did not charge monetary fees.

Education and training of workers would best be categorized as

A) land.
B) labor.
C) physical capital.
D) human capital.