Economic efficiency is most clearly improved while: (i) a new Wal-Mart opens in a rural community. (ii) less-developed countries grow quicker than more developed countries. (iii) taxes are composed in accord along with the principle of progressivity. (iv) India increases its production of luxury automobiles. (v) Niki and Chandra trade items in their school lunches regarding one-third of the time.
Please choose the right answer from above...I want your suggestion on topic of distributive efficiency.