(Consider This) in "Slicing the Pizza," the Shrinkage of the Pizza

(Consider This) In "Slicing the Pizza," the shrinkage of the pizza refers to the

A) fact that poor people are not helped by the income-maintenance system.
B) efficiency losses-the losses of output and income associated with the tax-transfer system.
C) tendency of rich people in developing nations to hoard their wealth overseas.
D) failure of the Internal Revenue Service to collect all the tax revenues owed by taxpayers.