Governments That Have Instituted Affirmative Action and Quota Hiring Have

Governments that have instituted affirmative action and quota hiring have done so chiefly for what reasons?

A) For economic reasons, to receive maximum equalization payments for following the rules
B) For political reasons, such as national unity
C) For bureaucratic reasons, because such practices are shown to increase business efficiency
D) For diplomatic reasons, to appear democratic
E) For ethical reasons, because it is quite simply the right thing to do