An Overallocation of Resources in an Industry Means That for the Last

An overallocation of resources in an industry means that for the last unit produced,

A) economic profit is negative but rising.
B) society places a higher value on the resources required to produce the last unit than the value society places on consuming the last unit.
C) the demand price for the last unit exceeds the marginal cost of producing the last unit.
D) the marginal cost of production is falling.
E) the average cost is falling.