Discuss the probable justification for each of the following provisions of the tax law:
1) The s 179 election to expense certain business assets upon their acquisition
2) Favorable treatment accorded to research and development expenditures
3) A deduction allowed for income resulting from U.S. production(manufacturing) activities
4) The deduction allowed for contributions to qualified charitable organizations
5) An election that allows certain corporations to avoid the corporate income tax and pass losses through to their shareholders
6) A tax credit for amounts spent to furnish care for minor children while the parent works