The largest source of federal tax revenue comes from:

Aindividual income taxes.
Bsocial insurance receipts.
Ccorporation income taxes.
Dexcise taxes. user: the social security tax is:
Adirect and progressive.
Bdirect and regressive.
Cindirect and progressive.
Dindirect and regressive. user: which of the following is a transfer payment?
Athe president's salary
Bveterans' benefits
Cthe nasa budget
Dprovision of national parks