Regarding taxes collected:

a$.$ Random audits have uncovered many schemes of tax evasion through foreign intermediaries.

b$.$ Estimates of the amount of the tax gap vary.

c$.$ The tax gap is the difference between the amount of tax reported on the taxpayer$$s return and the amount actually paid to the government.

d$.$ Taxpayers misrepresent about $1\%$ of income when there is little or no third party information reporting.

e$.$ Random audits detect all sophisticated forms of tax evasion.