Which of the following is not an important stock exchange in the United States?

The Law of Diminishing Marginal Benefit states that:

A) the demand for a commodity declines as its price increases. B) the demand for a commodity is more dependent on income than on price. C) the willingness to pay for an additional unit declines as more of a good is consumed. D) lower levels of consumption give lower level of utility.

If the demand curve a firm faces shifts to the right, usually

a. it would be impossible to tell whether the marginal revenue curve shifts. b. the marginal revenue curve would shift to the left. c. the marginal revenue curve would shift to the right. d. the marginal revenue curve would not shift.