Sam's manufacturing plant recently decided to pay its workers 14% more than the current market wage for equivalent skills. Such a management decision can be due to

Speculation in the sale of public lands

(a) did not occur. (b) placed land in the hands of capitalists at a price that was not competitive. (c) proved to be a necessary evil in transferring land from public to private ownership. (d) was caused by squatters.

Rents represent earnings that

a. exceed marginal cost b. are less than marginal revenue product c. are less than what producers would require to supply products d. exceed opportunity revenue e. exceed opportunity cost